Number Theory Review
Authored by Ayen Cabangunay
Mathematics
5th Grade
CCSS covered
Used 19+ times
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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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