Grade 2 Mental Math Review

Addition

100

17 + 9=

26

200

27 + 13 =

40

300

45 + 140=

185 

400

156 + 29 =

185

500

163 + 148 =

311

Subtraction

100

35 -15=

20

200

43 -19 =

24

300

150 - 35 =

115

400

173 - 44 =

129

500

122 - 38 =

84

Multiplication

100

3 x 5 =

15

200

4 x 6 =

24

300

3 x 9 =

27

400

65 x 2 =

130

500

40 x 6 =

240

Division

100

25 / 5 =

5

200

24 / 4 =

6

300

55 / 5 =

11

400

132 / 2 =

66

500

72 / 8 =

9

Word Problems

100

I have 12 candies and my mum gives me 14 more. How many candies do I have now?

26

200

There are 43 crayons in a box and 12 of them are broken. How many are NOT broken?

43- 12 = 31

300

Mrs. P. buys new maths dictionaries for her class.  Each dictionary costs $5.  Mrs. P. buys 7 dictionaries.

How much money does she spend?

7 x $5 = $35

400

A hen hays 4 eggs every day. How many eggs will she lay in a week?

4 x 7 = 28

500

There are 32 pieces of broccoli. If Mr. Chan eats 1/4 of them how many are left over?

He eats 32/ 4= 8

So left over = 32 - 8 = 24