Counting Back from 20

Count backward from 20, and from any number within 20.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 26

Now let's count back from 20! 20, 19, 18, 17, 16, 15.
Counting back past ten: 12, 11, 10, then 9! After ten come the numbers you know from the countdown.
You can count back from any number. Start at 17: 16, 15, 14.
Your turn! Start at 13. Tap the number line to count back three times.
Try it with a grown-up! Walk up the stairs counting on, then come down counting back.

Georgia's K-12 Mathematics Standards:

K.NR.2.1 — Count forward to 100 by tens and ones and backward from 20 by ones.
K.NR.2.2 — Count forward beginning from any number within 100 and count backward from any number within 20.