What do you know so far?
You are about to watch a video about a teen running for class president. The video will help you learn all about adding and subtracting negative integers.
But first, take this short quiz to see where you are. It’s OK if you aren’t
sure of the answers.
After the video, you will do three practice problems, then take another short quiz so you can compare how you did against where you started.
Start
1
Which equation is correct?
a
18 - 30 = 12
b
18 - 30 = 48
c
18 - 30 = -12
d
18 - 30 = -48
2
The Andre for President campaign fund had $29 in cash donations but also owed $42 to Bianca’s Button Shoppe. Which of the following best shows the finances of the campaign?
a
$42 - $29 = $13
b
$29 + 42 = $71
c
$42 – ($29) = -$71
d
$29 - $42 = -$13
3
Just before the election, Andre’s campaign owed $78 to different stores for campaign supplies. Andre’s Aunt Joyce kindly decided to pay the bill for $26 to Pete’s Poster Place to help Andre out. Which of the following best describes this situation?
a
$78 + $26 = $104
b
-$78 - (-$26) = -$52
c
-$78 - $26 = -$104
d
$78 - $26 = $52
4
Andre unfortunately scheduled an outdoor campaign rally on an unseasonably cold day. Four hours before the event was scheduled to begin, the temperature was -2°C, but when the rally started, it was an additional -15°C colder. Which equation describes this situation and the new temperature when the rally started?
a
-15 - (-2) = -13
b
2 + 15 = 17
c
-2 - (-15) = 13
d
-2 + (-15) = -17
5
Andre’s campaign fund has $0 in it, so he decided to hold a fundraising party at lunchtime. To make it happen, he borrowed $75 for pizza from his mom and $25 for lemonade from his aunt. Which of the following number lines best shows how much money Andre owes after the two loans?
a
-$25
b
-$50
c
-$100
d
-$75
6
How confident are you about adding and subtracting negative integers?
a
Very confident
b
Confident
c
Somewhat confident
d
Not confident