Multiply Operations With Rational Numbers
-1 * -8.5
8.5
(2/9)/(7/5)
10/63
8.5 + -3.5
5
5/8 - (-7/2)
33/8 or 4 1/8
What is this symbol called?
≤
Less Than Or Equal To
Solve for k, k + 64 < 18
k < -46
-0.036 * 0.9 =
=0.0324
(different signs ... product is negative)
-5/9 /15
-1/27
-3/4 + 7/2
11/4 or 2 3/4
-7/8-(-5/6)
-1/24
What is a Zero-Pair?
Two numbers that add to equal zero. One is positive and one is negative.
Solve for m, m – 85 > 5
m > 90
15/6 * -1.2
- 3
-7 / (5/7)
-9.8 or 49/5
2.2 + 4.6
6.8
1.8 - (-3.7)
5.5
What is Absolute Value?
The distance a number is form zero (on a number line) ALWAYS POSITIVE!
Solve for j, 6j < 36
j < 6
7 3/4 * (-15/8)
4 2/15
(1/7)/(5/2)
2/35
8.7 + -7.1
1.6
7/4 - (-1/2)
9/4
What is an Integer?
A whole number that can be positive, negative or zero.
Solve for f, f / 3 ≤ 27
f ≤ 81
3.14 *1 2/5
=
4 99/250
(-2/-7)/(4/-9)
-9/14
1/10 + 2
21/10 or 2 1/10
(-1.82)-(-7.61)
5.79
What is a Rational Number?
It is a number that can be written as a/b where b≠0
Double Points!!!
Solve for t, (-7)t + 4 ≤ 32
t ≥ -4