Show:
Adding
Subtracting
Multiplying
Dividing
Extra points
100

23+-56

-33

100

27-34-

-7

100

14 x-12

-168

100

105 - -5

21

100

144 - 12

12

200

45+-37

8

200

24-78-

54-

200

12 x-10

-120

200

125 - 100

1.25

200

12+3

9

300

234+-125

109

300

287-456

169

300

125x25-

-3125

300

77 - 7

11

300

176 -76

100

400

178 + -5

173

400

346-212

134

400

52 x 2

1024

400

250 -5

50

400

6 x7

42

500

234 + -88

146

500

3400 - -1465

1935

500

-56 x 42

-2065

500

156 - 56

100

500

2x4-

8-