Question

Which of the following equations is correctly calculated?

Answer 1

Hello!

Let's solve to verify whether the equations are true.

⇒ -18 ÷ 6 = -3

⇒ Given answer : 3

⇒ Incorrect

⇒ 30 ÷ 3 = 10

⇒ Given answer : -10

⇒ Incorrect

⇒ -7 × -7 = 49

⇒ Given answer = -49

⇒ Incorrect

⇒ -8 × 3 = -24

⇒ Given answer = 24

⇒ Correct

∴ The equation which is correctly calculated is -8 × 3 = -24.

Answer 2

d) -8 × 3 = -24

Explanation:

a) -18 ÷ 6 = -3

b) 30 ÷ 3 = 10

c) -7 × -7 = 49

d) -8 × 3 = -24

Above from all, option d is done correctly.

Note: when negatives are multiplied together or divided they cancel out to being positive. For example: -1 × -1 = 1