Key Idea1 of 3
Count Down!
Counting backward means going the other way: 20, 19, 18, 17, 16... Each number is one less than the number before it. It is like going down stairs!
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Math — Counting to 100
Counting backward means going the other way: 20, 19, 18, 17, 16... Each number is one less than the number before it. It is like going down stairs!