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100

-3 -1 =

-4

100
9-(-5)=
What is 14
100

12x11=

132

100

9 − (−5) =

14

100
1 + 12 =

13

200
-9+21=
What is 12
200
-7-4=
What is -11
200

−15 − (−2) =

-13

200

−14 + 5 =

-9

200

-9 + 3 =

-6

300

14+(-9)+(-20)=

What is -15

300

7-10=

-17

300

3 - (-3) =

6

300

−12 − 15 =

-27

300

7 + (−3)

4

400

2 - 9 = 

-7

400

−6 + (−4) =

-10

400

2 + (−1)

1

400

−12 + −2 =

-14
400

10 − (−2) =

12

500

8 + (-15) = 

-7

500

5 − (−15) = 

20

500

(-4) -3 =

 -7

500

-4 - (-3)

-1

500

−15 − 9 =

-24