Counting by 10s

Count forward and back by 10s from any number: 23, 33, 43…

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

What children learn in Level 3

Counting by tens is a fast way to count! 10, 20, 30, 40, 50.
You can count by tens from any number. Start at 23: 33, 43, 53. The ones digit stays 3. Only the tens change!
On the hundred chart, counting by ten is one step straight down.
Your turn! Count by tens from 85. Tap the number that comes after 105.
You can count back by tens too, one step straight up: 74, 64, 54, 44.
Counting by tens: the ones digit stays the same, and the tens digit goes up or down by one.

Georgia's K-12 Mathematics Standards:

1.NR.1.1 — Count within 120, forward and backward, starting at any number. In this range, read and write numerals and represent a number of objects with a written numeral.