Question

Estimate using compatible numbers.

Answer 1

Hint:
Find 80% of 200.

Answer 2

Or... you can keep the same ratio by multiplying the 80 by 2, and doing the opposite to the 200 (dividing the 200 by 2).

So... what is 160% of 100?

Answer 3

?

Answer 4

?

Answer 5

i suck at math

Answer 6

What part did you need explaining? Why I chose those numbers or how to do percents?

Answer 7

how to do percents

Answer 8

Ah ok. For percents, you do this:

Multiply the original number by the decimal form of the percent, to two places.

Answer 9

In other words:

89% becomes .89

So if we had 89% of 1000, you do:

1000 times .89, which is 890.

Answer 10

Protip:
Since we always do percents to two places, something like 5% becomes
.05

And something like 200% becomes 2.00 (or just times 2).

So 200% of 4 is: 4 times 2.00 = 8

Answer 11

So yeah, go ahead and do

80% of 200 for me.

Answer 12

160

Answer 13

!!

Answer 14

Nice work. :D

Answer 15

And you see why I chose 80% and 200 from 76 and 196, right?