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G8 18.06.2020

Total questions: 10

Worksheet time: 15mins

Name
Class
Date
1.
Evaluate.
a)
-12
b)
12
c)
±12
d)
1/12
2.

Evaluate:  4494\sqrt{49}  

a)

449

b)

47

c)

196

d)

28

3.
A perfect square is when a whole number is multiplied by itself?
a)
FALSE
b)
TRUE
4.

Simplify:    2482\sqrt{48}  

a)

 838\sqrt{3}  

b)

 4124\sqrt{12}  

c)

 969\sqrt{6}  

d)

 10210\sqrt{2}  

5.
Hidden Treasure Island is about 12 miles long.  Audree has a map of the island.  If the scale on the map is 1 inch = 1/2 mile, what is the length of the island on Audree's map?
a)
6 miles
b)
24 inches
c)
6 inches
d)
24 miles
6.
3/7  of 8th graders in Madisonville play sports.  If 3/5 of the 8th graders that play sports are boys, what fraction of 8th grade boys play sports?
a)
6/12
b)
36/35
c)
9/35
d)
3/5
7.

Between what two whole numbers does the √449 fall?

a)

19 and 20

b)

20 and 21

c)

21 and 22

d)

22 and 23

8.

Find the prime factorization of 30

a)

22 • 5 • 7

b)

2 • 32

c)

2 • 3 • 7

d)

2 • 3 • 5

9.
Which is the prime factorization of 12? 
a)
2 x 6
b)
2 + 2 + 2 + 2 + 2 + 2 
c)
2 x 2 x 3
d)
1 x 2 x 2 x 3
10.

Which of the following is TRUE?

a)

(511)2=1022\left(\frac{5}{11}\right)^2=\frac{10}{22}^{ }

b)

715=0.68\sqrt{\frac{7}{15}}=0.68

c)

(13)2 =19\left(-\frac{1}{3}\right)^2\ =-\frac{1}{9}

d)

64=8×8=82\sqrt{64}=\sqrt{8\times8}=8^2