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Operations with Signed Numbers: Problems with Solutions
Problem 1
Add: (+3) + (+4) =
Solution:
(+3) + (+4) = +7
Problem 2
Add: (-4) + (-3) =
Solution:
(-4) + (-3) = -7
Problem 3
Add: (+15) + (-7) =
Solution:
(+15) + (-7) = 15 - 7 = 8
Problem 4
-(-10) =
Solution:
-(-10) = 10
Problem 5
(+7) - (+4) =
Solution:
(+7) - (+4) = +3
Problem 6
-17 - (-14) =
Solution:
-17 - (-14) = -17 + 14 = -3
Problem 7
(+5) ⋅ (-8) =
Solution:
(+5) ⋅ (-8) = -40
Problem 8
-9 ⋅ (-9) =
Solution:
-9 ⋅ (-9) = 81
Problem 9
-6 ⋅ 5 =
Solution:
-6 ⋅ 5 = -30
Problem 10
40 : (-8) =
Solution:
40 : (-8) = -5
Problem 11
-24 : (-6) =
Solution:
-24 : (-6) = 4
Problem 12
0 : (-12) =
Solution:
0 : (-12) = 0
Problem 13
[tex]-5 : \frac{1}{2} =[/tex]
Solution:
[tex]-5 : \frac{1}{2} = -10[/tex]
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