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Number Theory Review

Authored by Ayen Cabangunay

Mathematics

5th Grade

CCSS covered

Used 19+ times

Number Theory Review
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12 questions

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1.

MULTIPLE SELECT QUESTION

1 min • 5 pts

Which of the following are factors of 42.

3

4

7

14

21

Answer explanation

Factors of 42

1 x 42

2 x 21

3 x 14

6 x 7

Tags

CCSS.4.OA.B.4

2.

FILL IN THE BLANK QUESTION

1 min • 5 pts

What are the missing numbers in the sequence?

2, 3, 5, 7, _____, 13, ______,19, 23

Answer explanation

This is a sequence of prime numbers.

Tags

CCSS.5.OA.B.3

3.

FILL IN THE BLANK QUESTION

1 min • 5 pts

What are the next two numbers in the sequence?

1, 4, 9, 16, 25 , _____, ______.

Answer explanation

This is a sequence of square numbers

6 x 6 = 36

7 x 7 = 49

Tags

CCSS.4.OA.C.5

4.

FILL IN THE BLANK QUESTION

1 min • 5 pts

Which same number will make the calculation correct?

_____ x _____ = 144

Answer explanation

Square root of 144 = 12

Tags

CCSS.4.NBT.B.6

5.

FILL IN THE BLANK QUESTION

1 min • 5 pts

What are the missing numbers in the series?

1,8,_____,64,125,_____

Answer explanation

This is a sequence of cubed numbers

3 x 3 x 3 = 27

6 x 6 x 6 = 216

Tags

CCSS.HSF.BF.A.2

6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

What same number will make the equation correct?


______ x ______ x ______ = 729

3

9

81

243

Answer explanation

Cube root of 729 = 9

7.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

2.0183

23.96

0.4971

1.003

Tags

CCSS.HSN.RN.A.2

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