Integers
5 + -2
3
5/16 + (-7/16)
5/16 + (-7/16)
-2/16
-1/8
-7/2 + 3 2/3
-7/2 + 3 2/3
-7/2 + 11/3
-21/6 + 22/6
1/6
5.6 + (-1.3)
4.3
The temperature is -12.6 degrees Celsius. The temperature goes up 7.9 degrees. What is the new temperature?
-4.7 degrees Celsius
-4 + (-3)
-7
3/5 + (-4/15)
3/5 + (-4/15)
9/15 + (-4/15)
5/15
1/3
5 1/3 + -5/9
4 7/9
-8.2 + 5.4
-2.8
You finish 3/8 of the project. Your friend finishes 1/4 of the project. What fraction of the project is finished?
3/8 + 1/4
3/8 + 2/8
5/8 of the project is finished
12 + (-18)
-6
2/3 + (-1/6)
2/3 + (-1/6)
4/6 + (-1/6)
3/6
1/2
3/12 + (-1) + 7/12
-1/6
7.15 + (-12.76)
-5.61
You are digging for dinosaur bones. You dig 4.5 meters underground, but realize that you need to dig a total of 6.42 meters underground. What is the distance between your original hole and how far down the dinosaur bones are?
1.92 meters
15 + -16
-1
1/7 + (-3/4)
1/7 + (-3/4)
4/28 + (-21/28)
-17/28
-4 1/5 + 3 2/3 + -1 2/5
-1 14/15
[4.9 + (-3.5)] + (-0.5)
[4.9 + (-3.5)] + (-0.5)
1.4 + (-0.5)
0.9
Is this always, sometimes, or never true?
When adding two negative rational numbers, the sum will be negative
Always
-4 + (-24) + 6
-22
-3/4 + (-3/8)
-3/4 + (-3/8)
-6/8 + (-3/8)
-9/8 or -1 1/8
5 + (-2 1/3) + (-3 1/6)
5 + (-2 1/3) + (-3 1/6)
5/1 + -7/3 + -19/6
30/6 + -14/6 + -19/6
16/6 + -19/6
-3/6
-1/2
-12.4 + 19.1 + (-4.3)
2.4
Is this always, sometimes, or never true?
When adding two rational numbers with different signs, the sum will be negative.
Sometimes