Show:
Adding Rational Numbers
subtracting Rational Numbers
multiplying Rational Numbers
Dividing Rational Numbers
Challenge question
100

1/4+4/8

6/8

100

-7-(-3)

-4

100

-5×4

-20

100

-10÷5

-2

200

940+-400+600+525

1665

200

-3-(-5)

-15

200

-12×-20

240

200

36÷6

6

300

-940+-400+600+-525

-1265

300

-20-(-19)

-1

300

15×-30

-450

300

-240÷-12

20

400

-156+143+158+-149

-49

400

-20/12-(-15/19)

-50/57

400

-90×-40

3600

400

-180÷10

18

500

-1900+-400+80

1580

500

-5/8-(-4/3)

17/24

500

-9/10×-5/5

45/50 or 9/10

500

-9/5÷3/5

-45/25 or -9/5 or -1 4/5 

500

This is worth 1,000 points 

54×-5+1029-(-32) + 33

824