crct review: numbers & operations
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CRCT Review:Numbers & Operations
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
Factors, Multiples, & Prime Factorization 100
Which choice shows ALL the factors of 45?
A. 5, 9
B. 1, 5, 9, 45
C. 1, 3, 5, 9, 15, 45
D. 1, 3, 4, 5, 9, 15, 45
Factors, Multiples, & Prime Factorization 100 Answer
C. 1, 3, 5, 9, 15, 45
Factors, Multiples, & Prime Factorization 200
Which number is a multiple of both 5 and 3?
A. 145
B. 260
C. 353
D. 510
Factors, Multiples, & Prime Factorization 200 Answer
D. 510
Explanation: use the divisibility rules –
3: sum of digits is divisible by 3
5: ends in 5 or 0
Factors, Multiples, & Prime Factorization 300
Which shows the prime factorization of 90?
A. 2 x 3 x 15B. 3² x 10C. 2 x 3² x 5D. 9 x 2 x 5
Factors, Multiples, & Prime Factorization
300 Answer
C. 2 x 3² x 5
Factors, Multiples, & Prime Factorization 400
What is the least common multiple of 9 & 15
A. 3B. 18C. 45D. 90
Factors, Multiples, & Prime Factorization 400 Answer
C. 45
Factors, Multiples, & Prime Factorization 500
What is the greatest common factor of 24 and 40?
A. 4 B. 8C. 12 D. 24
Factors, Multiples, & Prime Factorization 500 Answer
B. 8
Adding Fractions 100
A) B)
C) D)
1 3
6 4
4
107
12
11
12
11
12
Adding Fractions 100 Answer
C) 11
12
Adding Fractions 200
Art is reading a book for school. He read
¾ of the book last weekend and 1/8 this
morning. What fraction of the book has he
read so far?
A) B) C) D) 1
3
2
3
3
4
7
8
Adding Fractions 200 Answer
D)7
8
Adding Fractions 300
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)
73
8
34
5
107
13
197
20
18
219
840
Adding Fractions 300 Answer
D. 19
840
Adding Fractions 400
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) 7
11
3
131
1523
30
Adding Fractions 400 Answer
D) 23
30
Adding Fractions 500
A) B) C) D)
1 2 33
2 3 4
63
9
15
411
412
54
6
Adding Fractions 500Answer
C) 114
12
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
15
8
71
8
13
4
33
8
34
4
Subtracting Fractions 100 Answer
A)
13
4
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)
33
8
15
2
12
2
32
41
28
78
8
Subtracting Fractions 200 Answer
B)1
28
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)
16
4
14
2
11
23
14
12
4
32
4
Subtracting Fractions 300 Answer
B) 31
4
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)
114
2
39
4
33
4
13
21
44
34
4
Subtracting Fractions 400 Answer
D) 34
4
Subtracting Fractions 500
A) B) C) D)
5 13 - 2
9 2
11
18
31
184
19
41
7
Subtracting Fractions 500Answer
A)
11
18
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)
32
4
1
3
11
12
51
7
5
12
52
12
Multiplying & Dividing Fractions 100 Answer
A) 11
12
Multiplying & Dividing Fractions 200
1 23
5 15
A) B) C) D) 2432
75
2
5
122
2
Multiplying & Dividing Fractions 200 Answer
D) 24
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) 2705
58
Multiplying & Dividing Fractions 300 Answer
C) 160
Multiplying & Dividing Fractions 400
A) B) C) D)
2 3
5 8
3
20
3
10
5
13
11
15
Multiplying & Dividing Fractions 400 Answer
A) 3
20
Multiplying & Dividing Fractions 500
A) B) C) 2 D) 3
2 2
3 9
1
34
9
Multiplying & Dividing Fractions 500 Answer
D) 3
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
Misc. Answer 100
B) 18
Misc. 200For a concert, 80 singers will stand on risers. Thedirector wants to divide the singers so that there areequal numbers of singers standing on each riser. Which is NOT a possible way to divide the 80 singers Among the risers?
A) 4 risers with 20 singers eachB) 5 risers with 16 singers eachC) 6 risers with 12 singers each
D) 8 risers with 10 singers each
Misc. Answer 200
C) 6 risers with 12 singers each
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?
A) $6.85 B) $5.15
C) $4.85 D) $4.25
Misc. Answer 300
B) $5.15
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)
9
25
9
20
1
2
36
37
Misc. Answer 400
A)9
25
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
Misc. Answer 500
C) 270
Fractions, Decimals, & Percents 100
Which number is equivalent to 0.378?
A) B)
C) D)
437
539
350
19
100
189
500
Fractions, Decimals, & Percents Answer 100
D) 189
500
437
539
350
19
100
189
500
Fractions, Decimals, & Percents 200
In which set are the numbers equivalent?
A) B)
C) D)
5 30.3, ,
15 10
2 20, 0.25,
5 50
70.70, , 0.7
10
30 3, 0.003,
100 100
Fractions, Decimals, & Percents Answer 200
C)7
0.70, , 0.710
5 30.3, ,
15 10
2 20, 0.25,
5 50
30 3, 0.003,
100 100
70.70, , 0.7
10
Fractions, Decimals, & Percents 300
Of the students in Mr. Hubbert’s sixth-grade class, 75% are in the chorus. What fraction of the class is in the chorus?
A) B) C) D)1
752
3
5
7
3
4
Fractions, Decimals, & Percents Answer 300
D) 3
4
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?
A) $5.10 B) $51
C) $9 D) $90
Fractions, Decimals, & Percents Answer 400
C) $9
Fractions, Decimals, & Percents 500
Which fraction equals 45%?
A) B) C) D)4
59
20
9
2545
50
Fractions, Decimals, & Percents Answer 500
B) 9
20
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