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

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

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

Fill in the Blanks

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 –