Page 15 - Math Skill - 2

Numbers up to 100 13

Numbers on Abacus

Write the numbers as shown on the abacus. One has been done

for you.

T O T O T O T O

3 1

T O T O T O T O

Expanded form

We can also write a number in terms of place values of its digits.

It is called the expanded form of a number.

Let us take a number 75. We can write 75 as 7 tens + 5 ones.

This is same as 70 + 5.

Write the expanded form of the following numbers.

One has been done for you.

2 tens + 5 ones
(a) 25 = _____________________________ = 20 + 5

(b) 15 = _____________________________ =