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Chapter 1: Q. 182 (page 55)

Subtract:

a) 7-4

b)-7-(-4)

Short Answer

Expert verified

Part(a) The required answer is 3.

Part(b) The required answer is-3.

Step by step solution

01

Part(a) Step 1. Given Information

Given expression:7-4

02

Part(a) Step 2. Calculation

We have, 7-4

take 4positive from 7positive and get 3positive

7-4=3

03

Part(b) Step 1. Given Information

Given expression:-7-(-4)

04

Part(b) Step 2. Calculation

take 4negatives from7negatives and get 3negatives

-7-(-4)=-7+4=-3

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