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## CRCT Review: Numbers

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Title: CRCT Review: Numbers

1
CRCT ReviewNumbers Operations
2
Factors, Multiples, Prime Factorization Adding Fractions Subtracting Fractions Multiplying Dividing Fractions Fractions, Decimals, Percents Misc.
100 100 100 100 100 100
200 200 200 200 200 200
300 300 300 300 300 300
400 400 400 400 400 400
500 500 500 500 500 500
3
Factors, Multiples, Prime Factorization 100
• Which choice shows ALL the factors of 45?
• 5, 9
• 1, 5, 9, 45
• 1, 3, 5, 9, 15, 45
• 1, 3, 4, 5, 9, 15, 45

4
Factors, Multiples, Prime Factorization 100
• C. 1, 3, 5, 9, 15, 45

5
Factors, Multiples, Prime Factorization 200
• Which number is a multiple of both 5 and 3?
• 145
• 260
• 353
• 510

6
Factors, Multiples, Prime Factorization 200
• D. 510
• Explanation use the divisibility rules
• 3 sum of digits is divisible by 3
• 5 ends in 5 or 0

7
Factors, Multiples, Prime Factorization 300
• Which shows the prime factorization of 90?
• 2 x 3 x 15
• 3² x 10
• 2 x 3² x 5
• 9 x 2 x 5

8
Factors, Multiples, Prime Factorization 300

C. 2 x 3² x 5
9
Factors, Multiples, Prime Factorization 400
What is the least common multiple of 9 15 A.
3 B. 18 C. 45 D. 90
10
Factors, Multiples, Prime Factorization 400
• C. 45

11
Factors, Multiples, Prime Factorization 500
What is the greatest common factor of 24 and
40? A. 4 B. 8 C. 12 D. 24
12
Factors, Multiples, Prime Factorization 500
• B. 8

13
• B)
• C) D)

14
• C)

15
• ¾ of the book last weekend and 1/8 this
• morning. What fraction of the book has he
• A) B) C) D)

16
• D)

17
• Micah needs yds of fabric for one project
• and yds of fabric for another. How many
• yds of fabric does she need in all?
• A) B) C) D)

18
• D.

19
• Vinnie is painting a barn. He did 2/3 of the
• Job last weekend and 1/10 this morning.
• What fraction of the barn has Vinnie painted?
• A) B) C) D)

20
• D)

21
• A) B) C) D)

22
• C)

23
Subtracting Fractions 100
• A sewing pattern shows that yds of fabric
are needed to
• make a bathrobe. A matching nightshirt needs only
yds. How
• much more fabric is needed for the bathrobe than
for the
• nightshirt?
• A) B) C) D) 7

24
• A)

25
Subtracting Fractions 200
• Tracy has pints of orange juice. She needs
• pints to make a punch. How much more
• Orange juice does she need?
• A) B) C) D)

26
• B)

27
Subtracting Fractions 300
• Manuel practiced the violin for hours
last
• week. Roger practiced cello for hours.
How
• Much longer did Manuel practice?
• A) B) C) D)

28
• B)

29
Subtracting Fractions 400
• It took George hrs to plant a vegetable
garden.
• Dick planted his garden in just hrs. How
much
• Longer did it take George to plant his garden?
• A) B) C) D)

30
• D)

31
Subtracting Fractions 500
• A) B) C) D)

32
• A)

33
Multiplying Dividing Fractions 100
• Arnold bought yds of string. He used
• Of it for a craft project. How much string did he
use?
• A) B) C) D)

34
• A)

35
Multiplying Dividing Fractions 200
A) B) C)
D) 24
36
• D) 24

37
Multiplying Dividing Fractions 300
• Small metal parts each measure 3/16 of an
• inch. How many of these parts can be cut
• from a strip of metal that is 30 inches long?
• A) B) 90 C) 160 D) 270

38
• C) 160

39
Multiplying Dividing Fractions 400
• A) B) C) D)

40
• A)

41
Multiplying Dividing Fractions 500
• A) B) C) 2 D) 3

42
• D) 3

43
Misc. 100
• Robert has a stamp collection. He can divide
• all the stamps in his collection into equal
• groups of 6 or equal groups of 9. What is the
• LEAST possible number of stamps that
• could be in his collection?
• A) 9 B) 18 C) 36 D) 54

44
• B) 18

45
Misc. 200
• For a concert, 80 singers will stand on risers.
The
• director wants to divide the singers so that
there are
• equal numbers of singers standing on each riser.
• Which is NOT a possible way to divide the 80
singers
• Among the risers?
• 4 risers with 20 singers each
• B) 5 risers with 16 singers each
• C) 6 risers with 12 singers each
• D) 8 risers with 10 singers each

46
• C) 6 risers with 12 singers each

47
Misc. 300
• Sal bought these items at the school store.
• Binder 3.50
• Notebook 1.25
• Pencil 0.10
• How much change did he receive from 10.00?
• 6.85 B) 5.15
• C) 4.85 D) 4.25

48
• B) 5.15

49
Misc. 400
• Shelly found that 36 of the students she
surveyed said chocolate was their favorite ice
cream flavor. What fraction is equivalent to 36?
• A) B) C) D)

50
• A)

51
Misc. 500
• A total of 450 people attended the school play
performance. If 60 of those attending were
parents, how many parents attended the
performance?
• A) 27 B) 39 C) 270 D) 390

52
• C) 270

53
Fractions, Decimals, Percents 100
• Which number is equivalent to 0.378?
• B)
• C) D)

54
• D)

55
Fractions, Decimals, Percents 200
• In which set are the numbers equivalent?
• B)
• C) D)

56
• C)

57
Fractions, Decimals, Percents 300
• Of the students in Mr. Hubberts sixth-grade
class, 75 are in the chorus. What fraction of
the class is in the chorus?
• A) B) C) D)

58
• D)

59
Fractions, Decimals, Percents 400
• Lucy saved 15 of the price of a radio when she
bought it on sale. The regular price was 60. How
much did Lucy save?
• 5.10 B) 51
• C) 9 D) 90

60