Page 134 - New Medley 3 Semester 1

4. 7 6 0 4

– 4 0 5 7 Subtraction is

3 6 4 7 (correct/incorrect)

Addition and Subtraction Together

Example 6: Simplify: 3439 – 2057 + 2555

Solution: First term has no sign before it. It is taken as +.

Add the terms with plus sign and then subtract the term
with minus sign.

3 4 3 9 5 9 9 4

+ 2 5 5 5 – 2 0 5 7

5 9 9 4 3 9 3 7

Ans. 3937.

EXERCISE 3.6

Solve the following and write your answers in the blank spaces.

1. Simplify: 2140 + 7016 – 4159

2 1 4 0

+ 7 0 1 6 – 4 1 5 9

Ans:

2. Simplify: 4901 – 2234 + 4415

4 9 0 1

+ –

Ans:

3. Simplify: 6145 + 2142 – 4217

+ –

Ans:

132