Download 5 2) 9r + 6 = 96 3) 10n - 10 = 80 Find the absolute value. 4) 2 5

Review for Test 1
Solve the equation.
1) 65 = 7x - 5
2) 9r + 6 = 96
3) 10n - 10 = 80
Find the absolute value.
4) 2
5) -8
6) 0
Find the perimeter of the polygon.
7)
11 mi
6 mi
12 mi
Find the perimeter of (the distance around) the figure.
8)
156 yd
156 yd
392 yd
238 yd
527 yd
82 m
9)
28 m
28 m
82 m
Add. Use a number line only as a check.
10) 16 + (-10)
Add.
11) 11 + (-4) + (-15)
Review
12) -4 + (-15) + (-15) + (-8) + 20 + (-12)
13) -14 + 1 + (-12)
Estimate the sum or difference by rounding each number to the nearest hundred.
383
14)
431
993
146
+ 516
Estimate the sum or difference by first rounding to the nearest thousand.
15) 67,591
- 30,349
Divide, if possible.
16) -126 ÷ (-7)
17)
-39
3
18)
240
-10
Divide.
19) 63 4219
Divide, if possible. If not possible, write "not defined."
20) 2688 ÷ 8
Divide.
21) 35 18,721
Write < or > between the pair of numbers to make the statement true.
22) -3
-2
Round to the nearest thousand.
23) 77,158
Find the following.
24) Find -(-x) when x is -70.
25) Find -x when x is 4.
Review
Find the opposite (additive inverse) of the number.
26) -6
Evaluate - -x given x.
27) 45
Add.
28)
5166
1365
+ 6205
29)
859
349
582
365
+ 818
Insert parentheses to illustrate the associative law of addition.
30) (5 + 3) + 4 = 5 + 3 + 4
Complete the equation to illustrate the commutative law of addition.
31) 7 + 2 =
Simplify.
32) 4 · (4 + 4)2 - 4 · (6 - 4)2
33) 8 × 5 + {15 ÷ [8 - (3 + 2)]}
34) (-1) 23
35) 19 + (-7) - 8 - (-9)
Multiply.
36) 5 · (-6)
37) (918)(98)
38) (-7)(-3)(-4)
Write expanded notation.
39) 34,679
Write the number in words.
40) 9,300,695
Review
Solve using the division principle.
41) -49 = 7k
Solve.
42) 143 + y = 621
Subtract.
43) 17 - (-7)
44) 49,859 - 13,025
Find the area of the region.
45)
108 yd
18 yd
Evaluate.
46)
2x + 4y
, for x = 72 and y = 64
8
47) 2x2, for x = 7 and x = -7.
Use the distributive law to write an equivalent expression.
48) -9(-4x - 8y + 4)
49) 6(4m + 8)
50) (y + 6)5
Review