MENTAL MATHS

by Kim Sơn

Multiple Choice

29 + 17 =

• 35

• 36

• 46

• 47

Multiple Choice

42 - 16 =

• 16

• 26

• 36

• 58

Multiple Choice

18 + 39 + 22 + 11 = 

• 80

• 90

• 91

• 92

Multiple Choice

37 - 14 - 7 

• 14

• 16

• 28

• 20

Multiple Choice

• 2

• 3

• 4

• 5

Fill in the Blanks

Write the number before 54.

Fill in the Blanks

Write eighty one

Fill in the Blanks

Half 44

What's number?

Fill in the Blanks

Double 11 

What's number

Multiple Choice

Viết số tiếp theo

10, 14, 18, ................

• 19

• 20

• 21

• 22

Multiple Choice

Viết số tiếp theo

48, 45, 42, .........,

• 41

• 40

• 39

• 38

Multiple Choice

Viết số tiếp theo

27, ........., 17, 12

• 25

• 21

• 22

• 23

Multiple Choice

Viết số tiếp theo

14, ............, 22, 26

• 15

• 16

• 17

• 18

Fill in the Blanks

What is number great than 25 and less than 27.

Fill in the Blanks

Find the smallest  20, 19, 26, 22

Multiple Choice

How many sides  does a quadrangle have?

• 2

• 3

• 4

• 5

Multiple Choice

How many vertices  does a triangle have?

• 2

• 3

• 4

• 5

Multiple Choice

What number comes between 187 and 189?

• 186

• 183

• 188

• 185

Multiple Choice

What is the difference between 43 and 36?

• 17

• 7

• 27

• 37

Multiple Choice

Break up the number 75 into tens and units

• 7 + 5

• 70 + 5

• 50 + 7

• 17 + 5

• 1

Multiple Choice

14 + x = 29

• x = 10

• x = 15

• x = 19

• x = 18

Multiple Choice

y - 23 = 19

• y = 4

• y = 42

• y = 24

• y = 21

Multiple Choice

Which day is 3 days after Tuesday?

• Wednesday

• Thursday

• Friday

• Saturday

Multiple Choice

What number comes before 53?

• 54

• 55

• 52

• 51

Multiple Choice

Pate has 64 chocolates. How many would she have if I gave her 18 more.

• 81

• 82

• 46

• 56

Open Ended

Calculating polyline lengths.

Open Ended

Arrange the numbers, from least to greatest:  

12; 54; 21; 45; 24

Open Ended

Arrange the numbers, from greatest to least:  

67; 31; 76; 8; 13

Open Ended

Choose the correct symbol: + or –