Question

ANSWER ALL OF THESE AND YOU GET AS MANY POINTS THAT I HAVE!!!!!!!

Calculate
(-20) - (-16)
I got 4 what did I do wrong?
Calculate
-8 - 27
I got -19 what did I do wrong?

Calculate
20 - (-20)
I got 0 what did I do wrong?
8.12 x 0.5
I got 4.6 what did I do wrong?
11.5 x 2.4
I got 40.2 what did I do wrong?
42.5÷0.5
I got 85 what did I do wrong?
28.2÷0.04
I got 702 what did I do wrong?
3 1/3 ÷ 1 1/4
I got 4 4/5 what did I do wrong?
3/8 ÷ 3/5
I got 1 1/10 what did I do wrong?

sorry it's so long but thank you

Answer 1

See below

Explanation:

-20 - (-16) = -20 + 16 = - 4

-8 - 27 = - 35

20 - (-20) = 20 + 20 = 40

8.12 * .5 = 4.06

11.5 * 2.4 = 27.6

42.5 / .5 = 85

28.2 / .04 = 705

3 1/3 / 1 1/4 = 2 2/3

3/8 ÷ 3/5 = 3/ 8 X 5/3 = 15/24 = 5/8