Fractions, Decimals, Converting Fractions, Decimals, And Percents, Ratios, Exponents Worksheet With Answers Page 18
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30Multiplying Signed Numbers:
-
If the signs of the numbers are alike, the answer is positive.
-
If the signs of the numbers are different, the answer is negative.
Example: Multiple.
(-8) (-7)
-3 ● 10
56
-30
Since the signs are alike, the
The dot between the numbers is a
answer is positive.
symbol for multiplication. Since the
signs
are different, the answer is negative.
-
An even number of – signs gives a positive number.
-
An odd number of – signs gives a negative number.
(-6) (+2) (-3) (+4) even number of – signs, answer will be positive.
(-2) (-11) (+3) (-5) odd numbers of – signs, answer will be negative.
1. (-2) 9 =
2.
(+5) (-9) =
3. (-3/4) (12) =
4.
-8 ● +6 ● -2 =
5. (+14) (-2) =
6.
(-8) (-1) (+5) (-3)
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