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# Fill in the blanks.

(a) (– 8) + _____ = 0

(b) 13 + _____ = 0

(c) 12 + (– 12) = ____

(d) (– 4) + ____ = – 12

(e) ____ – 15 = – 10

**Solution:**

We use the concepts of positive and negative integers and addition and subtraction to fill in the blanks. We know that when we add a number to its additive inverse, we get 0 as the answer.

(a) Additive Inverse of - 8 = 8

So, - 8 + 8 = 0

Therefore, 8 is the answer.

(b) Additive inverse of 13 = -13

So, 13 + (-13) = 0

Therefore, -13 is the answer.

(c) Here we are adding 12 to its additive inverse, i.e -12

12 + (-12) = 0

Therefore, 0 is the answer.

(d) Here, we have to find what we need to add to -4 to get -12. So, to find the missing value, let’s add 4 to both sides of the equation.

- 4 + 4 + ___ = -12 +4

0 + ___ = - 8

___ = - 8

Therefore, -8 is the answer.

(e) Here to find the missing value, we need to first add 15 to both sides of the equation.

____ - 15 +15 = -10 +15

___ + 0 = 5

___ = 5

Therefore, 5 is the answer.

NCERT Solutions for Class 6 Maths Chapter 6 Exercise 6.3 Question 3

## Fill in the blanks. (a) (– 8) + _____ = 0 (b) 13 + _____ = 0 (c) 12 + (– 12) = ____ (d) (– 4) + ____ = – 12 (e) ____ – 15 = – 10

**Summary:**

Using the concepts of positive and negative integers and addition and subtraction, the blanks can be filled with correct numbers which are (a) 8, (b) -13, (c) 0, (d) - 8, and (e) 5.

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