Chapter 1: Q29. (page 56)

Find the sum or difference.
$- 48 - (- 72)$

Short Answer

Expert verified

The difference of the numbers is $24$ .

Step by step solution

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.

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.

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

$\begin{matrix} - 48 - (- 72) = - 48 + 72 \\ = 24 \end{matrix}$

Thus, the difference of the given numbers is $24$ .

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Find the sum or difference.
$- 48 - (- 72)$

Short Answer

Step by step solution

Step-1 – Apply the concept subtraction

Step-2 – Example for subtraction of numbers

Step-3 – Evaluate the difference

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Find the sum or difference.-48--72

Short Answer

Step by step solution

Step-1 – Apply the concept subtraction

Step-2 – Example for subtraction of numbers

Step-3 – Evaluate the difference

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Calculus

Logic and Functions

Statistics

Probability and Statistics

Pure Maths

Discrete Mathematics

Study anywhere. Anytime. Across all devices.

Find the sum or difference.
$- 48 - (- 72)$