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1.6
1.7
1.8
1.9
100

(58+23)+17=58+(23+__)

17 

100

9 cubed

93

100

132=

169

100

27/3+6x2=

21

200

7+29+11+43=

90

200

24

16

200

square root of 81

9

200

[(52-13)x(6-3)]x square root of 4=

72

300

350x400=

1,220,000

300

2x53=

250

300

square root of 250,000

500

300

36/(6+3)x2=

8

400

4x13x25=

1,300

400

72=

49

400

square root of 980/20 -2

5

400

7+3x5=

22

500

3,000x150=

450,000

500

3x3x3x3x3=

35

500

square root of 7x28

14

500

2x28/4-(3+5x2)=

1