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Number Theory Test Review

Authored by Olivia Adams

Mathematics

6th - 7th Grade

CCSS covered

Used 32+ times

Number Theory Test Review
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26 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which lists all the factors of 20?

1, 2, 4, 5, 10, 20
1, 2, 5, 10, 20
1, 4, 5, 20
1, 2, 10, 20

Tags

CCSS.4.OA.B.4

2.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

True or False: 1, 2, 3 and 6 are factors of 6.

True

False

Tags

CCSS.4.OA.B.4

3.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

What multiple is missing?

20,_,40,50

50

70

30

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The first six nonzero multiples of 7 are....

7, 14, 28, 35, 42, 49  7,\ 14,\ 28,\ 35,\ 42,\ 49\ \

7, 14, 21, 28, 35, 42 7,\ 14,\ 21,\ 28,\ 35,\ 42\

14, 21,28, 35, 42, 4914,\ 21,28,\ 35,\ 42,\ 49

1, 7, 14, 21, 28, 35 1,\ 7,\ 14,\ 21,\ 28,\ 35\

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The prime factorization of 104 is

2+2+2+132+2+2+13

2×2×2×132\times2\times2\times13

2×2×1×32\times2\times1\times3

2×2×2×3×12\times2\times2\times3\times1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What composite number is represented by the prime factorization 2×3×3×7?2\times3\times3\times7?  

120120  

12601260  

126126  

180180  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The GCF of 72 and 90 is

1818

99

22

1010

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