Estimating Multiplication and Division: Interactive Quizzes for Year 6 Maths

Question 1

Which of the following is NOT a good strategy for estimating the answer to a multiplication problem?

Accepted Answer

Multiplying digit by digit

Answer

Rounding the numbers

Answer

Using compatible numbers

Answer

Halving and doubling

Question 2

Which of the following is a good strategy for estimating the answer to a division problem?

Accepted Answer

Divide the larger number by the smaller number

Answer

Multiply the larger number by the smaller number

Answer

Subtract the smaller number from the larger number

Answer

Add the larger number to the smaller number

Question 3

When estimating 345 multiplied by 26, which of the following would be the most sensible first step?

Accepted Answer

Round both numbers to the nearest 10

Answer

Round both numbers to the nearest 100

Answer

Divide both numbers by 10

Answer

Multiply both numbers by 10

Question 4

Which of the following is NOT a helpful strategy for estimating the answer to a multiplication problem?

Accepted Answer

Multiplying the numbers exactly

Answer

Rounding numbers

Answer

Using compatible numbers

Answer

Guessing the answer

Question 5

Which method is best for estimating the answer to a multiplication problem?

Accepted Answer

Round the numbers to the nearest ten or hundred

Answer

Multiply all the digits together

Answer

Use a calculator

Answer

Guess randomly

Question 6

Which method is most suitable for estimating the answer to a division problem?

Accepted Answer

Round the numbers to the nearest ten or hundred

Answer

Divide the larger number by the smaller number

Answer

Use a calculator

Answer

Guess randomly

Question 7

Which of the following is NOT an advantage of using estimation?

Accepted Answer

It can give us an exact answer

Answer

It can help us solve problems more efficiently

Answer

It can help us check our answers

Answer

It can help us make better decisions

Question 8

What is the initial step in estimating the answer to a multiplication problem?

Accepted Answer

Round the numbers to the nearest ten or hundred

Answer

Multiply all the digits together

Answer

Divide the numbers

Answer

Add the numbers

Question 9

Which of these estimates is closest to the answer of 678 ÷ 15? Divide by a compatible number.

Accepted Answer

40

Answer

30

Answer

50

Answer

60

Question 10

Which of these estimates is closest to the answer of 1,345 ÷ 42? Divide by a multiple of ten or hundred.

Accepted Answer

30

Answer

20

Answer

40

Answer

50

Question 11

When estimating the product of 234 and 125, which method would give the most accurate result?

Accepted Answer

Rounding both numbers to the nearest 10 and multiplying

Answer

Multiplying the numbers directly

Answer

Rounding both numbers to the nearest 100 and multiplying

Answer

Rounding both numbers to the nearest 5 and multiplying

Question 12

A farmer has 287 apples to pack into boxes. Each box holds 12 apples.  About how many boxes will the farmer need?

Accepted Answer

25

Answer

45

Answer

15

Answer

35

Question 13

Which of the following is the best estimate for 59 x 7?

Accepted Answer

420

Answer

350

Answer

560

Answer

630

Question 14

A bakery has 384 cookies. They need to divide them evenly into 18 boxes.  About how many cookies will be in each box?

Accepted Answer

20

Answer

30

Answer

10

Question 15

If you have 47 pencils and need to divide them equally among 9 friends, about how many pencils will each friend get?

Accepted Answer

5

Answer

6

Answer

7

Answer

4

Question 16

Estimate the product of 19 and 23. Which of these is the closest estimate?

Accepted Answer

400

Answer

500

Answer

600

Answer

300

Question 17

A shop sold 783 toys in a week.  They sold about the same number each day.  About how many toys did they sell each day?

Accepted Answer

100

Answer

50

Answer

150

Answer

200

Question 18

If you need to buy 17 boxes of crayons for a school, and each box costs £3.99, about how much money will you need?

Accepted Answer

£70

Answer

£90

Answer

£100

Answer

£50

Question 19

You have 150 pieces of candy to share equally among 22 friends. About how many pieces of candy will each friend get?

Accepted Answer

7

Answer

5

Answer

9

Answer

10

Question 20

A recipe for cookies requires 18 ounces of chocolate chips. You have a bag with 29 ounces of chocolate chips.  About how many times can you make the recipe?

Accepted Answer

1

Answer

4

Answer

2

Answer

3

Question 21

Estimate the product of 38 and 12. Which of the following is the most reasonable estimate?

Accepted Answer

400

Answer

300

Answer

500

Answer

600

Question 22

Which of the following is the best estimate for 153 ÷ 17?

Accepted Answer

9

Answer

5

Answer

15

Question 23

A baker needs to make 72 cupcakes for a party. She can make 12 cupcakes in each batch. Estimate how many batches she needs to make.

Accepted Answer

6

Answer

10

Answer

8

Answer

4

Question 24

Estimate the product of 29 and 43. Which of the following is the closest estimate?

Accepted Answer

1200

Answer

900

Answer

1800

Answer

1500

Question 25

A shop sells apples in bags of 8. If you need about 50 apples, how many bags should you buy?

Accepted Answer

7

Answer

6

Answer

5

Answer

8

Question 26

Estimate the quotient of 78 ÷ 9. Which of the following is the best estimate?

Accepted Answer

8

Answer

10

Answer

6

Answer

12

Question 27

A car travels 375 miles in 5 hours. Estimate the average speed of the car in miles per hour.

Accepted Answer

75

Answer

100

Answer

50

Question 28

Which of the following is the closest estimate for 67 x 32?

Accepted Answer

2100

Answer

1800

Answer

2400

Question 29

Estimate the answer to 487 ÷ 5.

Accepted Answer

100

Answer

50

Answer

150

Answer

200

Question 30

You need to buy 150 balloons for a party. If balloons are sold in packs of 10, about how many packs should you buy?

Accepted Answer

15

Answer

20

Answer

10

Answer

25