Adding Rational Numbers
-8+(-17)
-25
6-(-15)
21
12times(-8)
-96
-72 divide 9
-8
Any number that can be written as a fraction a/b where a and b are integers and b cannot equal 0.
Rational Number
-4.8+9.3
4.5
-7.2-(-3.8)
-3.4
-0.4times0.25
-0.1
-6.3divide-0.9
7
A decimal that ends after a set of number of digits, such as 0.375
Terminating Decimal
5/12+(-11/12)
-1/2
2/6-7/6
-4/7
-3/8times(-5/8)
15/64
-7/10divide3/10
-7/3
The distance a number is from zero on a number line, which is always non-negative.
Absolute Value
-3/4+2/5
-7/20
3 1/4-5 1/2
-9/4
2 1/2times(-1 1/3)
-10/3
-4/5divide(-1 1/4)
16/25
The mathematical rule stating that a number plus its opposites equals zero (a + (-a) = 0)
Additive Inverse Property
-15+8.4+(-6)+3.6
-9
8.5-12.3-(-4.1)
0.3
-2 times(-3)times(-4)times(-5)
120
(-3/4)/(9/10)
-5/6
What is the sign rules for multiplying/dividing rational numbers?
Same signs is positive answer. Different signs is negative answer.