+
-
x
100

9+2

11

100

2-2

0

100

1x1

1

200

5+100

105


200

5-5

0

200

2x2

4

300

10+50

60

300

1-2

-1

300

5x5

25

400

90+10

100
400

4-5

-1


400

9x9

81