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Solve
equations. (Lessons 12-1, 12-2, 12-3) |
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Use
Properties of Equality and inverse operations
to solve each equation |
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t
+ 17 = 83. |
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c
– 72 = 19 |
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216 = 8s |
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| t
+ 17 – 17 = 83 –17 |
c
– 72 + 72 = 19 + 72 |
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t
= 66 |
c
= 91 |
27 = s |
m
= 294 |
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1. |
Solve
n
– 34 = 52 and 5y
= 70. |
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Order,
add, and subtract integers. (Lessons 12-5, 12-6, 12-7) |
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Integers
are the whole numbers and their
opposites. You can
use a number line to picture positive
and negative integers. |
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Order
0, -1, +4, and -5 from
least to greatest.
Refer to the number line. |
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From
least to greatest, the
integers are: -5, -1, 0, +4. |
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Find
+1 + -4.
Picture the addition
on a number line. |
Find
-5 – -2.
Add the opposite of the
integer being subtracted. |
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-5
– -2 = +5 + +2
=+7 |
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+ -4 = -3 |
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Order
+2, -6, +7, and -8 from
least to greatest and find -5 + -4, -8 –
-3,and -6 + +2. |
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