Grade Subtraction
Grade Addition
Grade Skip Counting
Grade Place Value
Addition and Subtraction
100

18-9

9

100

16+4

20

100

10, 20, 30, ___

40

100

Find the number that is in the one's place in 583 

3

100

25-10

15

200

50-25

25

200

31+20

51

200

400, 500, 600, ____

700

200

Find the number in the hundreds place in 729 

7

200

170 - 10

160

300

52 - 31

21

300

145+25

170

300

450, 460, 470, ___

480

300

What is the value of 4 in 492?

400

300

200 + 100

300

400

78 - 29

49

400

Kim has 45 cat stickers and she has 15 fish stickers. How many stickers does she have altogether?

60

400

55, 60, 65, ___

70

400

What is the value of the 9 in 239?

9

400

75 + 5

80

500

Ellen had 200 blocks. She gave her sister 50 blocks. How many blocks does Ellen have left?

150

500

If Mrs. Mayberry has 20 students, and she gets 5 more, how many students does she have now?

25

500

125, 120, 115, _____

110

500

My number is 235. I changed the digit in the hundreds place to a 6. My new number is

635

500

305 + 10

315