Question

Use compatible numbers to estimate: 56.9 ÷ 5.1.
A. 10
B. 11
C. 12
D. 9

Answer 1

well the easiest way to do this really is by rounding. and thanking about what is easier to divide with. For example, if we change 5.1 to 5, what is divisible by 5 and close to 56.9? seems like the closest thing would be 55. so if you have 55 divided by 5, what do you get @musa19965 ?

Answer 2

11?

Answer 3

yeah ^_^ See, when using compatible numbers, it should become easy enough to do the math in your head :)

Answer 4

i don't understand this lol i'm new to it.

Answer 5

that's fine, but do you have a better understanding now?

Answer 6

Yeah kinda thanks :)