Add
5+(-9)
-4
-12- (-9)
-3
-5 x 20
-100
-1/2 divided by 3/4
0.66666
1/2 + -1/2
0
10/9 - 1/3
0.778
(-2/3) (-1/2) (-3/5)
-1/5
2/4 รท 2/3
0.83333
What is the same about adding, subtracting, multiplying, and dividing rational numbers?
The rules are the same!
-36
5(-2/3)
3.333
14/-7
-2
3 + 1 1/2
4.5
65 -(-14)
79
What is a rational number?
A number that can be expressed as a fraction.
-4/5 divided by -2/3
1.2
1/2 + (-3/4)
-1/4
24 3/8-(-54 1/8)
78 1/2
In one day, 15 people each withdrew $100 from a banking machine. What was the overall change in the amount of money in the ATM machine?
-1500
How do you use "Keep, Change, Flip?"
Exactly how the name says; Keep the first numbe=, change to multiplication, an use the reciprocal of the last number.