Page 80 - ICSE Math 1

Number
5 Numbers from 21 to 99s from 21 to 99

Learning Outcomes

Students will be able to learn:  to identify numbers that come
 numbers from 21 to 99. before, after and in between the

 to count in tens. given numbers.
 backward counting.
 to count numbers on abacus.
 to form 2-digit numbers using
 to compare numbers.
diff erent digits.

Let’s learn to read and write more numbers by coun ng the given objects.

Numbers from 21 to 29

21 = 2 tens + 1 one Twenty-one

22 = 2 tens + 2 ones Twenty-two

23 = 2 tens + 3 ones Twenty-three

24 = tens + ones

25 = tens + ones

26 = tens + ones

27 = tens + ones

28 = tens + ones

29 = tens + ones

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