Addition
Subtraction
Multiplication
Division
Odds and Ends
100

9 + 9

18

100

20- 10

10

100

4 x 3 

12

100

6/2 

3

100

What are we skip counting by in this set of numbers 12, 14, 16, 18

2s

200

4 + 7

11

200

25 - 5

20

200

2 x2 

4

200

10 / 5

2

200

When you take two numbers and put them together to find the total, what math skill are you doing?

adding

300

25 + 25

50

300

18 - 9 

9

300

10 x 2

20

300

15/ 3 

5

300

What are we skip counting by

4, 8, 12, 16, 20

4

400

125 + 125

250

400

75 - 25

50

400

5 x 3

15

400

4/ 2

2

400

Find the difference means what?

subtract

500

657 + 239

896

500

492- 391

101

500

4 x 4

16

500

25 / 5

5

500

10 + 9

19