Basic Mathematics

Quiz on Lessons 1 through 9

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Quiz on Lessons 1 through 9
Click on the value of 9 in this number.
951
Question 1 of 18
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Since 9 is in the hundreds place, its value is 9 × 100 or 900.
No. Since 9 is in the hundreds place, its value is 9 × 100 or 900.
No. Since 9 is in the hundreds place, its value is 9 × 100 or 900.
No. Since 9 is in the hundreds place, its value is 9 × 100 or 900.
Since 9 is in the hundreds place, its value is 9 × 100 or 900.
No. Since 9 is in the hundreds place, its value is 9 × 100 or 900.
To find the value of a digit, multiply it by its place value.
Quiz on Lessons 1 through 9
Click on the value of 3 in this number.
835
Bonus Question
Since 3 is in the tens place, its value is 3 × 10 or 30.
No. Since 3 is in the tens place, its value is 3 × 10 or 30.
No. Since 3 is in the tens place, its value is 3 × 10 or 30.
No. Since 3 is in the tens place, its value is 3 × 10 or 30.
No. Since 3 is in the tens place, its value is 3 × 10 or 30.
To find the value of a digit, multiply it by its place value.
Quiz on Lessons 1 through 9
Click on the largest number that can be made from these digits.
1, 2, 6, 7
Question 2 of 18
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The largest number is made by putting the digits in order from largest to smallest. The largest number is 7,621.
No. The largest number is made by putting the digits in order from largest to smallest. The answer is 7,621.
No. The largest number is made by putting the digits in order from largest to smallest. The answer is 7,621.
No. The largest number is made by putting the digits in order from largest to smallest. The answer is 7,621.
No. The largest number is made by putting the digits in order from largest to smallest. The answer is 7,621.
The largest number is made by putting the digits in order from largest to smallest. The largest number is 7,621.
Start by putting the largest digit in the thousands place.
Quiz on Lessons 1 through 9
Click on the largest number that can be made from these digits.
5, 7, 8, 9
Bonus Question
The largest number is made by putting the digits in order from largest to smallest.
No. The largest number is made by putting the digits in order from largest to smallest. The answer is 9,875.
No. The largest number is made by putting the digits in order from largest to smallest. The answer is 9,875.
No. The largest number is made by putting the digits in order from largest to smallest. The answer is 9,875.
No. The largest number is made by putting the digits in order from largest to smallest. The answer is 9,875.
Start by putting the largest digit in the thousands place.
Quiz on Lessons 1 through 9
Click on the numeral equivalent to this expanded notation.
5 ones + 0 tens + 3 hundreds + 2 thousands
Question 3 of 18
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5 + 0 + 300 + 2000 = 2305
2,305 is the equivalent numeral.
No. 5 + 0 + 300 + 2000 = 2305
2,305 is the equivalent numeral.
No. 5 + 0 + 300 + 2000 = 2305
2,305 is the equivalent numeral.
No. 5 + 0 + 300 + 2000 = 2305
2,305 is the equivalent numeral.
5 + 0 + 300 + 2000 = 2305
2,305 is the equivalent numeral.
No. 5 + 0 + 300 + 2000 = 2305
2,305 is the equivalent numeral.
5 ones + 0 tens + 3 hundreds + 2 thousands = 5 + 0 + 300 + 2000
Quiz on Lessons 1 through 9
Click on the numeral equivalent to this expanded notation.
9 ones + 4 tens + 0 hundreds + 7 thousands
Bonus Question
No. 9 + 40 + 0 + 7000 = 7049
7,049 is the equivalent numeral.
No. 9 + 40 + 0 + 7000 = 7049
7,049 is the equivalent numeral.
No. 9 + 40 + 0 + 7000 = 7049
7,049 is the equivalent numeral.
9 + 40 + 0 + 7000 = 7049
7,049 is the equivalent numeral.
No. 9 + 40 + 0 + 7000 = 7049
7,049 is the equivalent numeral.
9 ones + 4 tens + 0 hundreds + 7 thousands = 9 + 40 + 0 + 7000
Quiz on Lessons 1 through 9
Click on the numeral equivalent to this expanded notation.
(4 × 103) + (8 × 102) + (6 × 101) + (2 × 100)
Question 4 of 18
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Since 103 = 1000, the 4 is in the thousands place.
4000 + 800 + 60 + 2 = 4,862
No. Since 103 = 1000, the 4 is in the thousands place.
4000 + 800 + 60 + 2 = 4,862
No. Since 103 = 1000, the 4 is in the thousands place.
4000 + 800 + 60 + 2 = 4,862
Since 103 = 1000, the 4 is in the thousands place.
4000 + 800 + 60 + 2 = 4,862
No. Since 103 = 1000, the 4 is in the thousands place.
4000 + 800 + 60 + 2 = 4,862
No. Since 103 = 1000, the 4 is in the thousands place.
4000 + 800 + 60 + 2 = 4,862
(4 × 103) + (8 × 102) + (6 × 101) + (2 × 100) = 4,000 + 800 + 60 + 2
Quiz on Lessons 1 through 9
Click on the numeral equivalent to this expanded notation.
(7 × 103) + (6 × 102) + (1 × 101) + (5 × 100)
Bonus Question
No. Since 103 = 1000, the 7 is in the thousands place.7000 + 600 + 10 + 5 = 7,615
No. Since 103 = 1000, the 7 is in the thousands place.7000 + 600 + 10 + 5 = 7,615
Since 103 = 1000, the 7 is in the thousands place. 7000 + 600 + 10 + 5 = 7,615
No. Since 103 = 1000, the 7 is in the thousands place. 7000 + 600 + 10 + 5 = 7,615
No. Since 103 = 1000, the 7 is in the thousands place. 7000 + 600 + 10 + 5 = 7,615
(7 × 103) + (6 × 102) + (1 × 101) + (5 × 100) = 7,000 + 600 + 10 + 5
Quiz on Lessons 1 through 9
Click on the number of units from X to Y.
Question 5 of 18
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There are 4 units from 3 to 7.
No. There are 4 units from 3 to 7.
No. There are 4 units from 3 to 7.
No. There are 4 units from 3 to 7.
There are 4 units from 3 to 7.
No. There are 4 units from 3 to 7.
Count the number of units from X to Y.
Quiz on Lessons 1 through 9
Click on the number of units from R to S.
Bonus Question
No. There are 3 units from 1 to 4.
No. There are 3 units from 1 to 4.
No. There are 3 units from 1 to 4.
There are 3 units from 1 to 4.
No. There are 3 units from 1 to 4.
Count the number of units from R to S.
Quiz on Lessons 1 through 9
Click on the number sentence shown by the number line.
Question 6 of 18
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The arrows show 5 units subtracted from 9.
The arrows show 5 units subtracted from 9.
No. 9 − 5 = 4
The arrows show 5 units subtracted from 9.
No. 9 − 5 = 4
The arrows show 5 units subtracted from 9.
No. 9 − 5 = 4
The arrows show 5 units subtracted from 9.
No. 9 − 5 = 4
The arrows show 5 units subtracted from 9.
The second arrow shows units subtracted from the first. Count the units for each arrow.
Quiz on Lessons 1 through 9
Click on the number sentence shown by the number line.
Bonus Question
No. 6 − 4 = 2
The arrows show 4 units subtracted from 6.
No. 6 − 4 = 2
The arrows show 4 units subtracted from 6.
The arrows show 4 units subtracted from 6.
No. 6 − 4 = 2
The arrows show 4 units subtracted from 6.
No. 6 − 4 = 2
The arrows show 4 units subtracted from 6.
The second arrow shows units subtracted from the first. Count the units for each arrow.
Quiz on Lessons 1 through 9
Round to the nearest ten.
433
Question 7 of 18
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433 rounded to the nearest ten is 430.
No. 433 rounded to the nearest ten is 430.
No. 433 rounded to the nearest ten is 430.
No. 433 rounded to the nearest ten is 430.
No. 433 rounded to the nearest ten is 430.
433 rounded to the nearest ten is 430.
The digit in the ones place is less than five. Round down.
Quiz on Lessons 1 through 9
Round to the nearest ten.
687
Bonus Question
687 rounded to the nearest ten is 690.
No. 687 rounded to the nearest ten is 690.
No. 687 rounded to the nearest ten is 690.
No. 687 rounded to the nearest ten is 690.
No. 687 rounded to the nearest ten is 690.
The digit in the ones place is five or more. Round up.
Quiz on Lessons 1 through 9
Round to the nearest thousand.
279,721
Question 8 of 18
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279,721 rounded to the nearest thousand is 280,000.
No. 279,721 rounded to the nearest thousand is 280,000.
No. 279,721 rounded to the nearest thousand is 280,000.
279,721 rounded to the nearest thousand is 280,000.
No. 279,721 rounded to the nearest thousand is 280,000.
No. 279,721 rounded to the nearest thousand is 280,000.
The digit in the hundreds place is five or more. Round up.
Quiz on Lessons 1 through 9
Round to the nearest thousand.
139,110
Bonus Question
No. 139,110 rounded to the nearest thousand is 139,000.
139,110 rounded to the nearest thousand is 139,000.
No. 139,110 rounded to the nearest thousand is 139,000.
No. 139,110 rounded to the nearest thousand is 139,000.
No. 139,110 rounded to the nearest thousand is 139,000.
The digit in the hundreds place is less than five. Round down.
Quiz on Lessons 1 through 9
Click on the best estimate of the difference.
885−193
Question 9 of 18
Your answer is shown. Click on Show button to see the correct answer.
900 − 200 = 700.
No. Round 885 to 900 and 193 to 200. The difference is 700.
No. Round 885 to 900 and 193 to 200. The difference is 700.
900 − 200 = 700.
No. Round 885 to 900 and 193 to 200. The difference is 700.
No. Round 885 to 900 and 193 to 200. The difference is 700.
Round both numbers to the nearest hundred. Then subtract the rounded numbers.
Quiz on Lessons 1 through 9
Click on the best estimate of the difference.
908 − 489
Bonus Question
No. Round 908 to 900 and 489 to 500. The difference is 400.
No. Round 908 to 900 and 489 to 500. The difference is 400.
900 − 500 = 400
No. Round 908 to 900 and 489 to 500. The difference is 400.
No. Round 908 to 900 and 489 to 500. The difference is 400.
Round both numbers to the nearest hundred. Then subtract the rounded numbers.
Quiz on Lessons 1 through 9
Click on the best estimate of the product.
17 × 1,968
Question 10 of 18
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20 × 2000 = 40,000
20 × 2000 = 40,000
No. Round 17 to 20 and 1968 to 2000.
20 × 2000 = 40,000
No. Round 17 to 20 and 1968 to 2000.
20 × 2000 = 40,000
No. Round 17 to 20 and 1968 to 2000.
20 × 2000 = 40,000
No. Round 17 to 20 and 1968 to 2000.
20 × 2000 = 40,000
Round both factors to their highest place value. Then multiply the rounded numbers.
Quiz on Lessons 1 through 9
Click on the best estimate of the product.
22 × 1,047
Bonus Question
No. Round 22 to 20 and 1047 to 1000.
20 × 1000 = 20,000
20 × 1000 = 20,000
No. Round 22 to 20 and 1047 to 1000.
20 × 1000 = 20,000
No. Round 22 to 20 and 1047 to 1000.
20 × 1000 = 20,000
No. Round 22 to 20 and 1047 to 1000.
20 × 1000 = 20,000
Round both factors to their highest place value. Then multiply the rounded numbers.
Quiz on Lessons 1 through 9
Click on the correct answer.
The arrow is pointing to the square in the _____ position.
Question 11 of 18
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The arrow is pointing to the square in the 15th position.
No. The arrow is pointing to the square in the 15th position.
No. The arrow is pointing to the square in the 15th position.
No. The arrow is pointing to the square in the 15th position.
The arrow is pointing to the square in the 15th position.
The first square is in the 13th position.
Quiz on Lessons 1 through 9
Click on the correct answer.
The arrow is pointing to the triangle in the _____ position.
Bonus Question
No. The arrow is pointing to the triangle in the 48th position.
No. The arrow is pointing to the triangle in the 48th position.
The arrow is pointing to the triangle in the 48th position.
No. The arrow is pointing to the triangle in the 48th position.
The first triangle is in the 45th position.
Quiz on Lessons 1 through 9
Click on the correct answer.
The arrow is pointing to the fish in the _____ position.
Question 12 of 18
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The arrow is pointing to the fish in the sixteenth position.
The arrow is pointing to the fish in the sixteenth position.
No. The arrow is pointing to the fish in the sixteenth position.
No. The arrow is pointing to the fish in the sixteenth position.
No. The arrow is pointing to the fish in the sixteenth position.
The second fish is in the twelfth position.
Quiz on Lessons 1 through 9
Click on the correct answer.
The arrow is pointing to the bird in the ______ position.
Bonus Question
The arrow is pointing to the bird in the fifty-second position.
No. The arrow is pointing to the bird in the fifty-second position.
No. The arrow is pointing to the bird in the fifty-second position.
No. The arrow is pointing to the bird in the fifty-second position.
The third bird is in the fifty-fourth position.
Quiz on Lessons 1 through 9
Click on the correct answer.
82.41 < ⃞
Question 13 of 18
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The 1 in the hundredth place is less than 2, so 82.41 is less than 82.42.
No. 82.41 is less than 82.42 since the 1 in the hundredths place is less than 2.
No. 82.41 is less than 82.42 since the 1 in the hundredths place is less than 2.
The 1 in the hundredth place is less than 2, so 82.41 is less than 82.42.
No. 82.41 is less than 82.42 since the 1 in the hundredths place is less than 2.
Find the first position where the digits are different.
Quiz on Lessons 1 through 9
Click on the correct answer.
39.3 > ⃞
Bonus Question
The 3 in the tenths place is greater than 0, so 39.3 is greater than 39.03.
No. 39.3 is greater than 39.03, since the 3 in the tenths place is greater than 0.
No. 39.3 is greater than 39.03, since the 3 in the tenths place is greater than 0.
No. 39.3 is greater than 39.03, since the 3 in the tenths place is greater than 0.
Find the first position where the digits are different.
Quiz on Lessons 1 through 9
Click on the correct answer.
Which group of decimals is ordered from least to greatest?
Question 14 of 18
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These decimals are ordered from least to greatest.
These decimals are ordered from least to greatest.
No. The order should be: 0.385, 0.405, 0.45, 0.85.
No. The order should be: 0.385, 0.405, 0.45, 0.85.
No. The order should be: 0.385, 0.405, 0.45, 0.85.
When whole numbers are the same, compare the digits in the corresponding positions to the right of the decimal points.
Quiz on Lessons 1 through 9
Click on the correct answer.
Which group of decimals is ordered from least to greatest?
Bonus Question
No. The order should be: 0.1, 0.164, 0.9, 0.99, 1.
No. The order should be: 0.1, 0.164, 0.9, 0.99, 1.
No. The order should be: 0.1, 0.164, 0.9, 0.99, 1.
These decimals are ordered from least to greatest.
When the whole numbers are the same, compare the digits in corresponding positions to the right of the decimal points.
Quiz on Lessons 1 through 9
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Which group of numbers shows forward skip counting by 4.2s?
Question 15 of 18
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That's correct. Each number in this forward skip counting by 4.2s sequence was obtained by adding 4.2 to each number.
That's correct. Each number in this forward skip counting by 4.2s sequence was obtained by adding 4.2 to each number.
59.2, 63.4, 67.6, 71.8, 76 is the group of numbers that shows forward skip counting by 4.2s.
59.2, 63.4, 67.6, 71.8, 76 is the group of numbers that shows forward skip counting by 4.2s.
59.2, 63.4, 67.6, 71.8, 76 is the group of numbers that shows forward skip counting by 4.2s.
In forward skip counting by 4.2s, the number 4.2 must be added to the first number to obtain the next number.
Quiz on Lessons 1 through 9
Click on the correct answer.
Which group of numbers shows forward skip counting by 5.5s?
Bonus Question
315.5, 321, 326.5, 332, 337.5 is the group of numbers that show forward skip counting by 5.5s.
315.5, 321, 326.5, 332, 337.5 is the group of numbers that show forward skip counting by 5.5s.
315.5, 321, 326.5, 332, 337.5 is the group of numbers that show forward skip counting by 5.5s.
That's correct. Each number in this forward skip counting by 5.5s sequence was obtained by adding 5.5 to each number.
In forward skip counting by 5.5s, the number 5.5 must be added to the first number to obtain the next number.
Quiz on Lessons 1 through 9
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Which number comes after 675 when skip counting by 5s?
Question 16 of 18
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That's correct. Use foward skip counting by adding 5 to 675.
675 + 5 = 680
Use foward skip counting by adding 5 to 675.
675 + 5 = 680
Use foward skip counting by adding 5 to 675.
675 + 5 = 680
Use foward skip counting by adding 5 to 675.
675 + 5 = 680
That's correct. Use foward skip counting by adding 5 to 675.
675 + 5 = 680
Use forward skip counting. When forward skip counting by 5s, add 5 to the first number to obtain the next number.
Quiz on Lessons 1 through 9
Click on the correct answer.
Which number comes before 312 when skip counting by 7s?
Bonus Question
Use backward skip counting by subtracting 7 from 312.
312 − 7 = 305
That's correct. Use backward skip counting by subtracting 7 from 312.
312 − 7 = 305
Use backward skip counting by subtracting 7 from 312.
312 − 7 = 305
Use backward skip counting by subtracting 7 from 312.
312 − 7 = 305
Use backward skip counting. When backward skip counting by 7s, subtract 7 from the first number to obtain the next number.
Quiz on Lessons 1 through 9
Click on the correct answer.
Is this product reasonable?
42 × 4.16 = 1622
Question 17 of 18
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Using rounding, 40 × 4 = 160, which is much smaller than the product 1622.
No. Using rounding, 40 × 4 = 160, which is much smaller than the product 1622.
No. Using rounding, 40 × 4 = 160, which is much smaller than the product 1622.
Using rounding, 40 × 4 = 160, which is much smaller than the product 1622.
Use rounding to estimate the product.
Quiz on Lessons 1 through 9
Click on the correct answer.
Is this product reasonable?
67 × 220 = 149
Bonus Question
No. Using rounding, 70 × 200 = 14000, which is much larger than the product 149
Using rounding, 70 × 200 = 14000, which is much larger than the product 149.
No. Using rounding, 70 × 200 = 14000, which is much larger than the product 149.
Use rounding to estimate the product.
Quiz on Lessons 1 through 9
Click on the correct answer.
Is this sum reasonable?
589 + 313 = 910
Question 18 of 18
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Using rounding, 600 + 300 = 900. The sum 900 is close to and reasonable to the sum 910.
Using rounding, 600 + 300 = 900. The sum 900 is close to and reasonable to the sum 910.
No. Using rounding, 600 + 300 = 900. The sum 900 is close to and reasonable to the sum 910.
No. Using rounding, 600 + 300 = 900. The sum 900 is close to and reasonable to the sum 910.
Use rounding to estimate the sum.
Quiz on Lessons 1 through 9
Click on the correct answer.
Is this sum reasonable?
831 + 689 = 302
Bonus Question
Using rounding, 800 + 700 = 1500, which is much larger than the sum 302.
No. Using rounding, 800 + 700 = 1500, which is much larger than the sum 302.
No. Using rounding, 800 + 700 = 1500, which is much larger than the sum 302.
Use rounding to estimate the sum.
Quiz on Lessons 1 through 9
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Quiz on Lessons 1 through 9
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