Addition
7+(−3)=
4
−12−(−7)=
-5
6×(−2)=
-12
12÷(−4)=
-3
Find the absolute values of these three integers: 72, -9, -35
72, 9, 35
−10+(−5)=
-15
−20−15=
-35
−4×(−5)=
20
−20÷-5=
4
What is an integer?
An integer is any whole number, negative numbers, and zero.
25+(−30)+15=
10
30−(−25)=
55
8(−9)=
-72
−72÷9=
-8
0÷7=
0
−18+12+(−7)=
-13
−50−(−30)−20=
-40
−3×4(−2)=
24
−72÷9÷(−4)=
2
5÷0
Undefined/Impossible
The temperature in a city was -6°C in the morning. By noon, it increased by 4°C, but in the evening, it dropped by 9°C. What is the temperature in the evening?
-11°C.
A deep-sea diver is 30 meters below sea level. He descends another 15 meters, but then ascends 20 meters. What is his final depth?
-25 meters below sea level.
A mountain climber is descending a mountain at a rate of 5 meters per hour. After 6 hours, the climber stops for a break. How far did the climber descend?
30 meters after 6 hours of descent.
A diver is at a depth of -60 meters below sea level. If the diver ascends at a rate of 10 meters per hour, how many hours will it take the diver to reach sea level?
6 hours
−6+3(−2)−8÷4=
-14