Numbers, Operations and Relationships

Question 1

Fill in the missing number: 32; 34; 36; _; 40

Answer 1

38

Question 2

What is the value of the 9 in 972?

Answer 2

900

Question 3

Round off to the nearest 10: 825

Answer 3

830

Question 4

54 x 10 =

Answer 4

540

Question 5

Write the number: Eighty-five

Answer 5

85

Question 6

Double 32

Answer 6

64

Question 7

Write in words: 635

Answer 7

Six hundred and thirty-five

Question 8

654 = 600 + 50 + 4. Expand the following in the same way:

673

732

123

Answer 8

600 + 70 + 3

700 + 30 + 2

100 + 20 + 3

Question 9

What is the digit in the 10s position of 145? What is its value?

Answer 9

4 with a value of 40.

Question 10

What is the next number after 712 612 512?

Answer 10

412

Question 11

Double 281.

Answer 11

200 + 80 + 1 (doubled)

400 + 160 + 2

562

Question 12

Double 412

Answer 12

824

Question 13

Halve 344

Answer 13

300 + 40 + 4 (halved)

150 + 20 + 2

172

Question 14

Halve 512

Answer 14

256

Question 15

What is the missing number: 400; _; 500; 550?

Answer 15

450

Question 16

Use vertical addition to work out 225 + 374.

Answer 16

225

374

___

599

Question 17

Mrs Graham finds a chocolate bar on special at R1,45 less than the normal price. She buys a discounted chocolate bar for R3,70. What is the normal price?

Answer 17

3,70 +

1,45

___

5,15

Question 18

Mom spends R993 at Pick ‘n Pay, but uses her Smart Shopper card to get a discount of R85. What does she pay?

Answer 18

R993-

85

____

R908

Question 19

88 - 54 =

Answer 19

88

54

__

34

Question 20

731 - 222 =

Answer 20

731 -

222

___

509

Question 21

4765 - 243 =

Answer 21

4765 -

243

____

4522