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8th grade Math
Georgia CRCT
Practice Study Guide
Packet # 1
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Domain
Number
And
Operations
( 13 Questions )
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Teacher: ____________________________ Period: _____
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Geometry
----------------------------------------------------------------------------------------------------------------------------1.
Find the two square roots of the number 144.
a. 36, –36
c. 11, –11
b. 72, –72
d. 12, –12
----------------------------------------------------------------------------------------------------------------------------2.
A square room has a tiled floor with 81 square tiles. How many tiles are along an edge of the room?
a. 9 tiles
c. 40 tiles
b. 11 tiles
d. 20 tiles
----------------------------------------------------------------------------------------------------------------------------3.
The square root
a. 102, 104
b. 15, 16
is between two integers. Name the integers.
c. 10, 11
d. 25, 26
----------------------------------------------------------------------------------------------------------------------------4.
Classify the number
a. irrational
as rational or irrational.
b. rational
-----------------------------------------------------------------------------------------------------------------------------
5.
Evaluate
a. –36
b.
1
36
.
c. – 1
36
d. 36
6.
a.
for a = 4, b = 2, c = 8, x = –1, and y = –2.
c. –96
Evaluate
b.
d.
----------------------------------------------------------------------------------------------------------------------------7.
Graph the numbers
1
, 1.7,
, 2 , and
on a number line. Then, order the numbers from least to
greatest.
a.
0
1
2
3
4
5
6
7
8
9
10
3
4
5
6
7
8
9
10
3
4
5
6
7
8
9
10
3
4
5
6
7
8
9
10
1
,
, 2 , , and 1.7
b.
0
1
2
1
, 1.7,
2
, , and
c.
0
1
, ,
2
, 1.7, and
1
2
d.
0
1
2
,
1
,
2
, 1.7, and
----------------------------------------------------------------------------------------------------------------------------8.
Multiply. Write the product as a power.
a.
b. Cannot combine
c.
d.
9.
a.
b.
Simplify
.
c.
d.
----------------------------------------------------------------------------------------------------------------------------10.
a.
b.
Divide. Assume that no denominator equals zero.
c.
d.
----------------------------------------------------------------------------------------------------------------------------11.
Write the number 9.91  106 in standard notation.
a. 0.0000991
c. 0.00000991
b. 9,910,000
d. 0.000000991
----------------------------------------------------------------------------------------------------------------------------12.
a.
b.
Write the number 0.000000001 in scientific notation.
c. 0
d. 1.0  109
----------------------------------------------------------------------------------------------------------------------------13.
If an average grape weighs 4.87 grams and a company purchases 1,000,000 grapes, how much will the
grape shipment weigh in kilograms? Write the answer in scientific notation.
a. 4.87  106 kg
c. 4.87  103 kg
b.
d. 0
kg
kg