Page 91 - Revised Maths Wisdom Class - 1

Subtracti on of 2-Digit Numbers 89

Manu dear! Can you solve the
problem of these little ones?
Easily dada ji!

2 tens and 5 ones 25

1 tens and 5 ones 15

Good, but tell
me how?

Under that put the
First, Write the bigger expanded form of
number in expanded form. smaller number ...

... and perform the
subtraction, easy-peasy!!!

2 tens and 5 ones 25

1 tens and 5 ones 15

1 tens and 0 ones 10

Good job Manu, through this
operation we get the answer ... 10.

Give the students a variety of instruments to perform subtraction operations, which are common
for two-digit numbers. The tools may include pinballs, beads, ice-cream sticks, etc. Keep track of
the time and reward the student who solves the sum in the shortest amount of time.