adding and subtracting rational numbers
exponents
addition
Subtraction
multiplication
100

5.08-30 

-24.92

100

32

9

100

50+340

390

100

50-24

26

100

25 x 3 

75

200

24+71.08

95.08

200

62

36

200

2340+980

3320

200

237-98

139

200

250 x 5 

1250

300

87-(-47) 

134

300

102

100

300

340+900

1240


300

430-80

350

300

340 x 34 

11560

400

85-(-28.005)

113.005

400

502

2500

400

982+35

1017

400

842-650

192

400

520 x 98 

50960

500

62.51 + (-97.08)

-34.57

500

1372

18769

500

4532+684

5216

500

9800-243

9557

500

23 x 45 

1035

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