Using the number line find the integer in the following cases :

(a) Sum of 5 and -3

(b) 5 less than 3

(c) 4 more than -1

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Solution

(a) We first move to the right of 0 by 5 steps reaching 5. Then we move 3 steps to the left of 5 reaching 2.

We get, $(+ 5) + (- 3) = 2$

(b) We want to know an integer which is 5 less than 3 for that we need to start from 3 and move to the left by 5 steps and obtain –2 as shown below:

(c) We want to know the integer which is 4 more than –1. So, we start from –1 and proceed 4 steps to the right of –1 to reach 3 as shown below:

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Question 81

Using the number line, write the integer which is

(a) 4 more than -5.

(b) 3 less than 2.

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