Master Mental Math: Enhance Your Calculation Skills in Year 5

Question 1

When subtracting multiples of 1000, what is different compared to subtracting multiples of 10 or 100?

Accepted Answer

We need to think about the thousands place.

Answer

We use the same method for all three.

Answer

We can only subtract multiples of 1000 from other multiples of 1000.

Answer

Subtracting multiples of 1000 is always harder than subtracting multiples of 10 or 100.

Question 2

Anna has 360 pounds. She spends 140 pounds on a new dress. How much money does Anna have left?

Accepted Answer

200 pounds

Answer

220 pounds

Answer

240 pounds

Question 3

If 780 is divided by 100, what is the result?

Accepted Answer

7

Answer

6

Answer

8

Question 4

Add 600 and 200 together

Accepted Answer

800

Answer

900

Question 5

Add 700 and 300 together

Accepted Answer

900

Answer

1000

Question 6

What is the sum of 520 and 40?

Accepted Answer

560

Answer

480

Answer

600

Answer

500

Question 7

Add 3000 and 400.

Accepted Answer

3400

Answer

2400

Answer

3500

Answer

3600

Question 8

Calculate: 1600 + 400

Accepted Answer

2000

Answer

1200

Answer

1800

Answer

1400

Question 9

Add 500, 300, and 200 mentally.

Accepted Answer

1000

Answer

800

Answer

1200

Question 10

What is the total of 300, 500, and 400 when you add them up mentally?

Accepted Answer

1200

Answer

1100

Answer

1300

Question 11

Take away 400 from 900.

Accepted Answer

500

Answer

400

Answer

600

Answer

700

Question 12

Take away 400 from 7000.

Accepted Answer

6500

Answer

6600

Answer

6700

Answer

6800

Question 13

What is one thousand four hundred?

Accepted Answer

1400

Answer

14

Answer

140

Answer

1040

Question 14

Which is the smallest number?

Accepted Answer

9

Answer

900

Answer

90

Answer

9000

Question 15

What is nine hundred and eighty minus one hundred and twenty?

Accepted Answer

860

Answer

900

Answer

960

Answer

1000

Question 16

Which number is ten times greater than twenty?

Accepted Answer

100

Answer

200

Answer

300

Answer

400

Question 17

What is one thousand minus five hundred?

Accepted Answer

500

Answer

5

Answer

50

Answer

1500

Question 18

Which is the largest number?

Accepted Answer

7000

Answer

700

Answer

70

Answer

7

Question 19

Which equation shows the sum of 540 and 20?

Accepted Answer

540 + 20 = 560

Answer

540 + 20 = 740

Answer

540 + 20 = 760

Answer

540 + 20 = 520

Question 20

Which of these is the same as 360 - 180?

Accepted Answer

160

Answer

180

Answer

540

Answer

480

Question 21

Find the sum of 50 and 70.

Accepted Answer

120

Answer

110

Answer

100

Question 22

Find the total of 650 and 250.

Accepted Answer

900

Answer

850

Answer

950

Question 23

Find the difference between 750 and 450.

Accepted Answer

300

Answer

200

Answer

400

Question 24

A bag of apples costs £20. You buy 3 bags. How much will it cost?

Accepted Answer

£60

Answer

£50

Answer

£40

Question 25

Subtract 250 from 750.

Accepted Answer

500

Answer

600

Answer

400

Question 26

A baker had 1200 cookies. She sold 500 cookies. How many cookies are left?

Accepted Answer

700

Answer

900

Answer

800

Answer

600

Question 27

What is 450 + 300?

Accepted Answer

750

Answer

550

Answer

650

Answer

850

Question 28

A farmer has 1500 sheep. He buys another 200 sheep. How many sheep does he have in total?

Accepted Answer

1700

Answer

1900

Answer

1600

Answer

1800

Question 29

A toy shop has 4000 toys. They sell 1000 toys. How many toys are left?

Accepted Answer

3000

Answer

4000

Answer

2000

Answer

5000

Question 30

A library had 2500 books. They received 300 new books. How many books do they have now?

Accepted Answer

2800

Answer

3000

Answer

2700

Answer

2900

Question 31

What is 380 + 210?

Accepted Answer

590

Answer

580

Answer

600

Answer

610

Question 32

What is the difference between 720 and 300?

Accepted Answer

420

Answer

430

Answer

440

Answer

410

Question 33

What is 220 multiplied by 10?

Accepted Answer

2200

Answer

2400

Answer

2300

Answer

2100

Question 34

What is 3600 divided by 100?

Accepted Answer

36

Answer

34

Answer

38

Answer

40

Question 35

What is 480 + 520?

Accepted Answer

1000

Answer

1010

Answer

1020

Answer

990

Question 36

Find the difference between 890 and 400.

Accepted Answer

490

Answer

500

Answer

510

Answer

480

Question 37

Which of the following is the closest to 500?

Accepted Answer

495

Answer

515

Answer

485

Answer

505

Question 38

What is the product of 210 and 4?

Accepted Answer

840

Answer

860

Answer

830

Answer

850

Question 39

Divide 1800 by 6.

Accepted Answer

300

Answer

310

Answer

320

Answer

290

Question 40

Calculate 60 + 40 + 20 mentally.

Accepted Answer

120

Answer

100

Answer

160

Answer

140

Question 41

Find the difference between 800 and 300 mentally.

Accepted Answer

500

Answer

400

Answer

600

Question 42

Calculate 1000 - 200 + 400 mentally.

Accepted Answer

1200

Answer

1600

Answer

1000

Answer

1400

Question 43

What is the next multiple of 10 greater than 345?

Accepted Answer

350

Answer

370

Answer

360

Answer

340

Question 44

Calculate 730 - 300 mentally using compensation.

Accepted Answer

430

Answer

450

Answer

440

Answer

420

Question 45

Which calculation has a difference of 500?

Accepted Answer

800 - 300

Answer

700 - 200

Answer

1000 - 500

Answer

900 - 400

Question 46

Estimate the sum of 567 and 234 to the nearest 100.

Accepted Answer

800

Answer

900

Answer

700

Question 47

Which calculation has a total of 1300?

Accepted Answer

1000 + 300

Answer

800 + 500

Answer

700 + 600

Answer

900 + 400

Question 48

Calculate 456 + 123 + 341 mentally.

Accepted Answer

920

Answer

1120

Answer

820

Answer

1020

Question 49

What is the remainder when 723 is divided by 10?

Accepted Answer

3

Answer

5

Answer

7

Answer

0