Same Signs
Different Signs
Keep - Change - Change
Mixed
HARD QUESTIONS
100

-2 + -6 

-8

100

9 + (-5)

4

100

-4 - 6

-10

100

-2 - 3

-5

100

185 + -8654

-8469

200

3 + 4

7

200

-12 + 5

-7

200

4 - 11

-7

200

-10 + 30

20

200

1725 + -2543

-818

300

-7 + -2

-9

300

-16 + 17

1

300

15 - (-7)

22

300

21 - (+5)

16

300

-847 - -651

-196

400

9 + 8 =

17

400

20 + (-3)

17

400

-27 - (-3)

-24

400

62 + (-32)

30

400

741 +  -652

89

500

-10 + -3

-13

500

16 + (-19)

-3

500

2 - 26

-24

500

-123 - (-24)

99

500

19 - (-22)

41

M
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