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Subtraction
Addition
Counting Up
Counting Down
100

Skip Counting by 2 

0, 2, 4, 6, ...

What number comes next?

8

100

10-7 = ?

3

100

4+6=?

10

100

Start from 1 and count to 10


1,2,3,4,5,6,7,8,9,10

100

Start from 10 and count down to 0

10, 9, 8,... 0

200

Skip counting by 5

10, 15, 20,..., 30, 35

What number is missing?

25

200

21- 14 = ?

7

200

11+18=?

29


200

Start from 10 and count to 25

10,11,12,13,14,15,...25

200

Start from 40 and count down to 20

40, 39, 38,... 20

300

Skip counting by 10

23, 33, 43,...

What number comes next?

53

300

100 - 86 = ?

14

300

105+ 42=?

147

300

Start from 25 and count to 50

25, 26, 27,28, 29,30,...50

300

Start from 90 and count down to 60

90, 89, 88, 87,... 60

400

Skip counting by 100

101, 201, 301,...

What number comes next?

401

400

296 - 81 =?

215

400

232+74=?

306

400

Start from 50 and count to 100

50,51,52,53,54,55... 100

400

Start from 125 and count down to 75

125, 124, 123,... 75

500

Skip counting by 200

215, 415,...,815,

What number is missing?

615

500

321 - 140=?

181

500

368+249=?

617

500

Start from 100 and count to 200

100,101,102,103,... 200

500

Start from 200 and count down to 100

200, 199, 198,... 100