By 1
By 5
By 10
By 15
By 20
100

1x7=

7

100

5-2=

3

100

10x10=

100

100

15-5=

10

100

20-7=

13

200

1x8=

8

200

5-5=

0

200

10x3=

30

200

15-12=

3

200

20+4=

24

300

1x4=

4

300

5+9=

14

300

10+9=

19

300

15+5=

20

300

20x1=

20

400

1x9=

9

400

5+7=

12

400

10-1=

9

400

15+3=

18

400

20-9=

11

500

1x2=

2

500

5x1=

5

500

10-4=

6

500

15+17=

32

500

20x2=

40

M
e
n
u