Page 42 - Revised Maths Wisdom Class - 3

40 MATHS

7 Mr. Khurana purchased a washing machine for ` 6899 and
a microwave for ` 2645 from a shop. How much total money

he had to pay for both the items?

Adding 10, 100 and 1000

Adding 10

Let us add 426 and 10
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Step 1: Identify the tens in 4 2 6. Step 2: Add 2 tens and 1 ten.
It is 2 tens. Write 3 in the tens place keeping other

digits same.

So, 4 2 6 + 1 0 = 4 3 6

Adding 100
Let us add 2436 and 100

Step 1: Identify the hundreds in Step 2: Add 4 hundreds and 1 hundred.

2 4 3 6. It is 4 hundreds. Write 5 in the hundreds place keeping

other digits same.

So, 2 4 3 6 + 1 0 0 = 2 5 3 6

Adding 1000

Let us add 6342 and 1000

Step 1: Identify the thousands in Step 2: Add 6 thousands and 1 thousand.

6 3 4 2. It is 6 thousands. Write 7 in the thousands place keeping
other digits same.

So, 6 3 4 2 + 1 0 0 0 = 7 3 4 2

Multiples of 10, 100 and 1000 can also be added in the same way

1. 4 7 + 3 0 = 7 7 2.
1 3 8 + 4 0 0 = 5 3 8

3. 3 2 5 6 + 6 0 0 0 = 9 2 5 6