Count On and Count Back

280, 290, 300, 310, 320

• Count back in tens

• Count on in tens

180, 185, 190, 195, 200

• count on in fives

• count back in fives

368, 366, 364, 362, 360.

• Count back in twos

• Count on in twos

386, 380, 374, 368, 362

• Count back in sixes

• Count on in sixes

Subtract the numbers by counting backward. 17 - 4 = _____

• 13

• 14

• 15

Subtract 7-3 by counting backward:

• 4

• 3

• 2

Subtract by counting back. 18-4=

• 14

• 13

• 12

Add by counting on. 15+4=

• 18

• 19

• 20

Start on 12. Count back 8. What number do you stop on?

• 6

• 4

• 20

• 8

Subtract by counting back. 16-3=

• 15

• 14

• 13