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NO CHART/HELP - Mental Math
Addition Only
Subtraction Only
Multiplication Only
Absolute Value and Opposites
100

1x1=?

1

100

13+7=?

20

100

25-13=? 

12

100

5x2=?

10

100

Find the absolute value of |4|

4

200

5+5=?

10

200

75+38=?

113

200

79-44=? 

35

200

9x9=? 

81

200

Find the absolute value of |-25|

25

300

84-21=?

63

300

192+13=? 

205

300

137-59=?

78

300

17x3=? 

51

300

What is the opposite of 212?

-212

400

10x0=?

0
400

629+720=? 

1349

400

791-114=

677

400

156x9=? 

1,404

400

Find the absolute value of -|117|

-117

500

2x9=?

18

500

1,925+437=? 

2,362

500

1,925-457=?

1,468

500

900x7=? 

6,300

500

What is the opposite of 0?

0