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Kindergarten Math · World 4: Counting Train · Level 22
Counting by Tens
Count by tens to 100: 10, 20, 30…
Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.
What children learn in Level 22
- Counting by tens is fast! 10, 20, 30, 40, 50, 60, 70, 80, 90, 100.
- On the hundred chart, the tens are at the end of each row: 10, 20, 30, all the way down to 100.
- Each pair of hands has 10 fingers. Count the hands by tens: 10, 20, 30. That's 30 fingers!
- Your turn! Count by tens. Tap the number that comes after 50.
- Try it with a grown-up! Flash all ten fingers and say 10. Flash them again: 20! Keep going to 100.
Georgia's K-12 Mathematics Standards:
- K.NR.2.1 — Count forward to 100 by tens and ones and backward from 20 by ones.