Either B or D I’m not really sure but I know it’s one of this answers
X+8
2x
x-3
8 more hours
twice the number
3 years younger
Answer:
b
Step-by-step explanation:
I prefer to use compatible numbers because by using this method it is easier to make a sum mentally. This is true because compatible numbers are close in value to the actual numbers. For a better understanding, let's take an example:
Suppose you have two numbers, namely 640 and 40. These two numbers are compatible for division because:
64 ÷ 4 = 16
So, we have used mental arithmetic to solve a more complex problem.
