Question

Review my answers please!
1) Find the Sum of -7 + (-5) = -2
2) Find the Sum of -4 + 16 = 12
3) Find the Sum of -48 + 16 = -32
4) Find the Sum of -8 + (-14) = 6
5) At 7:00 a.m, the temperature was 8°c. What was the temperature at midnight if the temperature was 10°c lower?

Answer 1

I forgot the add the answer on the last one, my answer was -2°c

Answer 2

#1. No. -7 + (-5) = -7 - 5 = -12
-7 - (-5) = -7+5 = -2
#2 ok
#3 ok
#4 no. See #1
#5 ok

better review adding negatives to negatives
Use the number line, remembering that adding a negative moves you to the left

Answer 3

thanks @oobleck