Page 57 - Maths Class 03

i. 9 5 4 3 j. 8 7 6 0 k. 7 6 2 1 l. 8 0 5 3

– 1 2 4 5 – 1 2 6 7 – 1 4 3 2 – 1 0 4 6

m. n. o. p.
5 0 0 0 3 0 5 6 4 5 6 1 1 8 3 2

– 1 4 3 9 – 1 2 9 7 – 1 3 9 7 – 1 4 9 6

2. Tick ( ) the box next to the correct answer.3

a. 3 8 7 1 0 1 b. 7 8 1 1 1 0

– 2 1 6 1 1 7 – 6 6 9 1 1 2

1 7 1 1 2 1

c. 7 2 1 3 0 7 d. 9 6 3 5 5 6

– 4 1 4 4 0 7 – 2 1 7 5 6 5

4 3 7 7 4 6

e. 6 4 7 2 7 4 f. 7 9 8 3 3 3

– 3 7 3 2 7 5 – 3 4 5 3 4 5

3 2 4 4 5 3

Subtracting Across Zeros

Example : Subtract 100, 10 and 1 from 1000.

Solution :

The regrouping procedure is shown below.

Th H T O
1 Th is 10 H
10
1000 1000
1 0 0 0 Borrow 1 Th from
– 100 = – 100
– 1 0 0 Thousands column
900
9 0 0

Mathematics-3 57