Multiplying Rational Numbers
(-4) * 5 =
-20
-1/4 - (-5/12)=
2/12 or 1/6
4 - 5 =
-1
60 / 5
12
What is the definition of a rational number
Any number that can be expressed as a fraction
-5 * -5 =
25
-14 + -8
-22
- 20 - (-4) =
-16
-14/2
-7
Can you express an integer (a whole number) as a fraction? T/F
True - by placing it over 1.
9 * -7 =
-63
-24.8 x 3=
74.4
32 - (-30) =
62
-34.6/2
-17.3
When multiplying or dividing a positive and a negative sign together, the answer will be ___________ (positive or negative)?
negative
When multiplying different signs together, the answer will be a negative signed number.
-79.3 * 3 =
-237.9
–33 + 91
58
–3.37 – 9.37
-12.74
542.7/-9
-60.9
When adding two numbers of different signs, do we add the number together or take the difference between the two numbers?
Take the difference between the two numbers
-63 * -5.4 =
340.2
–16 + –25
-31
-5.5 + (-10.75) =
-16.25
-5/6 divide 1/3
-15/6 or -2 3/6 or -2 1/2
Samantha owes her father $10. She just got paid $6.50 for babysitting. How much does Samantha still owe her father if she gives him the money she earned from babysitting?
$3.50