1. (-33) + (-3) 2.99 - (-11) 3. (-22) (-1) 4.(-125)(-2) 5.99 ÷ (-11)
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1. (-33) + (-3) 2.99 - (-11) 3. (-22) (-1) 4.(-125)(-2) 5.99 ÷ (-11)
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Answer:
OPERATIONS OF INTEGERS NUMBER
The answer:
A. 1. 19, 2. -12, 3. -1, 4. 10, 5. 9, 6. -6, 7. -4, 8. 4, 9. 22, `10. -9
B. 1. 3, 2. 4, 3. 5, 4. 15, 5. -11, 6. 0, 7. -4, 8. 7, 9. 2, 10. -9
What are integers?
In mathematics, all numbers are referred to as integers. These numbers might be positive, negative, or zero, but they do not include any fractions.
Addition of Integers Using Number Line
Positive integer + Positive integer = Positive integer
Negative integer + Negative integer = Negative integer
Positive integer + Negative integer = Use the sign of a larger number, then subtract
Negative integer + Positive integer + = Use the sign of a larger number, then subtract
Subtraction of Integers on Number Line
Negative integer - Positive integer = Negative integer
Negative integer + Negative integer = Negative integer + Positive integer
Positive integer - Negative integer = Positive integer
A. Add the following
1. (+9) + (+10)
(+9) + (+10) = 9 + 10
(+9) + (+10) = 19
Therefore, (+9) + (+10) = 19.
2. (-7) + (-5)
(-7) + (-5) = -7 - 5
(-7) + (-5) = -12
Therefore, (-7) + (-5) = -12.
3. (+5) + (-6)
(+5) + (-6) = 5 - 6
(+5) + (-6) = -1
Therefore, (+5) + (-6) = -1 .
4. (+2) + (+8)
(+2) + (+8) = 2 + 8
(+2) + (+8) = 10
Therefore, (+2) + (+8) = 10.
5. (-1) + (+10)
(-1) + (+10) = -1 + 10
(-1) + (+10) = 9
Therefore, (-1) + (+10) = 9.
6. (-3) + (-3)
(-3) + (-3) = -3 - 3
(-3) + (-3) = -6
Therefore, (-3) + (-3) = -6.
7. (+4) + (-8)
(+4) + (-8) = 4 - 8
(+4) + (-8) = -4
Therefore, (+4) + (-8) = -4.
8. (-8) + (+12)
(-8) + (+12) = -8 +12
(-8) + (+12) = 4
Therefore, (-8) + (+12) = 4.
9. (11) + (+11)
(11) + (+11) = 11 + 11
(11) + (+11) = 22
Therefore, (11) + (+11) = 22.
10. 0 + (-9)
0 + (-9) = 0 - 9
0 + (-9) = -9
Therefore, 0 + (-9) = -9.
B. Subtract the following
1. (+7) - (+4)
Therefore,
(+7) - (+4) = 7 - 4 = 3
2. (-2) - (-6)
Therefore,
(-2) - (-6) = -2 + 6 = 4
3. (12) - (+7)
Therefore,
(12) - (+7) = 12 - 7 = 5
4. (-6) - (+9)
Therefore,
(-6) - (+9) = -6 -9 = 15
5. (-10) - (+1)
Therefore,
(-10) - (+1) = -10 - 1 = -11
6. (-4) - (-4)
Therefore,
(-4) - (-4) = -4 + 4 =0
7. (+5) - (+10)
Therefore,
(+5) - (+10) = 5 - 10 = -5
8. (+10) - (3)
Therefore,
(+10) - (3) = 10 -3 = 7
9. (+8) - (+6)
Therefore,
(+8) - (+6) = 8 - 6 = 2