Question

In the following exercise, multiply or divide.

(a)$-4·8$

(b)$13\left(-5\right)$

(c)$-24÷6$

(d)$-52÷\left(-4\right)$

Short answer

Part (a) The result of multiplication is $-32$.

Part (b) The result of multiplication is $-65$.

Part (c) The result of division is role="math" localid="1644764158853" $-4$.

Part (d) The result of division is $13$.

Step-by-step solution

Part (a) Step 1. Concept Used.

The result of multiplication or division of two numbers with same sign, is positive and with different signs, is negative.

Part (a) Step 2. Calculation.

Multiply 8 with opposite of 4.

$-4·8=-32$

Part (b) Step 1. Concept Used.

The result of multiplication or division of two numbers with same sign, is positive and with different signs, is negative.

Part (b) Step 2. Calculation.

Multiply 13 with opposite of 5.

$13\left(-5\right)=-65$

Part (c) Step 1. Concept Used.

The result of multiplication or division of two numbers with same sign, is positive and with different signs, is negative.

Part (c) Step 2. Calculation.

Divide the opposite of 24 by 6.

$-24÷6=-4$

Part (d) Step 1. Concept Used.

The result of multiplication or division of two numbers with same sign, is positive and with different signs, is negative.

Part (d) Step 2. Calculation.

Divide the opposite of 52 by the opposite of 4.

$-52÷\left(-4\right)=13$