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Chapter 1: Q29. (page 56)

Find the sum or difference.

-48--72

Short Answer

Expert verified

The difference of the numbers is24.

Step by step solution

01

Step-1 – Apply the concept subtraction

Two numbers with similar signs get added and the resulting number carries the similar sign.

Two numbers with opposite signs get subtracted and the resulting number carries the sign of the larger number.

02

Step-2 – Example for subtraction of numbers

The difference of the numbers 7-3=4 is positive because the larger number is positive as well.

And the difference of the numbers 3-7=-4 is negative because the larger number is negative as well.

03

Step-3 – Evaluate the difference

To evaluate the difference-48--72,add the opposite of the second number.

To subtract -72, add its opposite 72 to get

鈭�48鈭�(鈭�72)=鈭�48+72=24

Thus, the difference of the given numbers is 24.

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