addition
Sing the addition song
same signs add, opposites attract, and keep the sign of the larger number
Sing the subtraction song
keep, change, change, too many minus signs can drive you insane
Sing the multiplication/division song, or how does Ms Levine remember what to do for this?
same signs positive, different signs negative
When my mommy and daddy agree, the answer is always positive; when my mommy and daddy disagree, it is negative.
The temperature in the morning was −6°C. By the afternoon, it rose 11°C.
What was the temperature in the afternoon?
5 degrees celcius
A football team lost 4 yards on one play and then gained 12 yards on the next play.
What was the total change in yards?
8yds
66 + (-16) =
50
Find the change in temperature from 32 degrees to -10 degrees
42 degrees
56/-8 =
-7
3-(-8)=
11
A scuba diver is −20 meters below sea level. She swims 7 meters deeper.
What is her new elevation?
-27meters
-32 + 17 =
15
-5-(-1) =
-4
9(-11) =
-99
-48 / (-6)
8
The temperature dropped 4°C each hour for 5 hours.
What was the total change in temperature?
-20 degrees
55 + (-28) + (-6) =
21
118-(-2)-315=
-435
-238/(-17) =
14
360/-36/-2
5
A submarine descended −36 meters over 6 minutes, descending the same amount each minute.
How many meters did it descend each minute?
-6 meters
-35+16+(-12)+7
-34
-10-(-525)-280=
235
-99(-716)=
7.23
-16(-5)/4(-5)
-4
A submarine starts at −120 meters below sea level. It rises 35 meters, then dives 48 meters, and finally rises 27 meters.
Start: −120
Rise 35 → −120 + 35 = −85
Dive 48 → −85 − 48 = −133
Rise 27 → −133 + 27 = −106
Final position: −106 meters below sea level.