Adding Integers

With Regrouping

100

-12 + 9

-3

200

63 + - 15

48

300

- 82 + 46 

-36

400

137 + (-39) 

98

500

-321 + 127  

-194

Without Regrouping

100

- 7 + - 5

-12

200

24 + (-11)

13

300

(-45) + (-21)

-66

400

463 + - 123

340

500

-257 + -121

-378

Mixed

100

21 + -7

14

200

-17 + -25

-42

300

-65 + 25

-40

400

-257 + -23

-280

500

451 + (-120)

331

Decimals

100

(-1.2) + 2.7

1.5

200

-23.6 + -2.1

-25.7

300

2.49 + - 1.2

1.29

400

(-84.2) + (-21.71)

-105.91

500

125.82 + -23.6

102.22

Equations

100

X + 10 = 4

X = -6

200

x + -10 = - 21

X = -11

300

X + 24 = -10

X = -34

400

X + -11 = -18

X = -7

500

-96 + x = -45

X = 51