product
addition
mental math
subtract
math
100

12 multiply by 13

156

100

200+300

500

100

6 multiply by 4

24

100

300-1

299

100

what is addition ?

addition is adding numbers . 

200

14 multiply 9

126

200

70+140

210

200

4 multiply by 12

48

200

500-45

455

200

the square root of 9

3

300

54 multiply 3

476

300

12+13

25

300

13 multiply by 5

65

300

600 - 20

780

300

 square root of the 144

12

400

67 multiply 2

134

400

400+50

450

400

20 multiply by 6

120

400

700-4

696

400

the square root of 81 

9

500

123 multiply 3

369

500

2000+5000

7000

500

30 multiply by 3

90

500

400-20

380

500

the square root of 121

11

M
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