Subtraction -
Addition +
Multiplication
Fractions
Skip Count
100

5-2=

3

100

2+2=

4

100

1x10

10
100

1/6

1/6

100
By 10s

10,20,30,40,50,60,70,80,90,100

200

10-6=

4

200

10+4=

14

200

2x3

6
200

1/4

1/4

200

By 5s

5,10,15,20,25,30,35,40,45,50

300

35-12=

23

300

24+12=

36

300

6x8

48

300

1/3

1/3

300

By 2s

2,4,6,8,10,12,14,16,18,20,22

400

86-53=

33

400

215+132=

347

400

10x11

110

400

1/8

1/8

400

By 3s

3,6,9,12,15,18...

500

354-213=

141

500

24+16=

40

500

12x5

60

500

1/2

1/2

500

By 4s

4,8,12,16,20,24,28,32..