Fractions, Decimals, Converting Fractions, Decimals, And Percents, Ratios, Exponents Worksheet With Answers Page 16
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30Signed Numbers
Adding Signed Numbers:
-
Add all the positive numbers, make the total positive.
-
Add all the negative numbers, make the total negative.
-
Compare the two totals by subtracting the smaller from the larger, and give the
answer the sign of the larger total.
Examples: Add
1.
3, -5, +12 and -9
2.
(-9) + (10) + (-8) + (+4)
positive total +3, +12 = +15
positive total (+10) + (+4) = +14
negative total -5 -9 = -14
negative total (-9) + (-8) = -17
Comparison +15 -14 = +1 or simply 1
Comparison +14 -17 = -3
1.
(+5) + (-8) + (+9) =
2.
-18 + (-2) +6 =
3.
6 + (-8) =
4.
(-9) + (-4) + (8) + (7) + (-2) =
5.
Find the sum of: +8, -6, -5
6.
Simply: -10 + (-13) + (-26)
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