Download ~ANSWER KEY~ 5th Grade Unit 1 Checking Progress

~ANSWER KEY~
5th Grade Unit 1 Checking Progress
1a.
b.
Write 3 even numbers.
Answers Vary
Write 3 odd numbers.
Answers Vary
1h. Identify even and odd numbers.
2.
0-2
3-4
5-6
1
2
3
Mr. Martin has 24 tulip
bulbs. He wants to plant
them in a rectangular
array consisting of at
least 2 rows with at least
2 tulips in each row. On
the grid at the right, draw
three possible arrays and
number models for each.
1f. Draw arrays to model multiplication.
1-2
3-4
5
1
2
3
3.
3 x 7 = ______
4.
8 x 9 = ______
5.
7 x 8 = ______
6.
5 x 6 = ______
7.
9 x 6 = ______
8.
4 x 8 = ______
1g. Know basic multiplication facts.
9.
a.
List all the factors of 10.
b.
List all the factors of 27.
c.
List all the factors of 24.
1i. List the factors of a number.
1-2
3-4
5
1
2
3
1
2
3
10.
At the right is a calendar
for a month. Use the
following clues by crossing
out the numbers to figure
out what date the school
won its last basketball
game.
S
7
14
21
28
M
1
8
15
22
29
T
2
9
16
23
30
W
3
10
17
24
31
T
4
11
18
25
F
5
12
19
26
S
6
13
20
27
• The date is not an even number.
• The date is not a square number.
• The date is not a prime number.
• The date is a multiple of 5.
On what day of the month did the school win its last basketball
game?
15
11.
Pretend that you are playing
Factor Captor on the number
grid at the right. The crossedout numbers have already been
picked. Which number would be
the best to choose next and why.
19
Why?
1
6
11
16
21
26
2
7
12
17
22
27
3
8
13
18
23
28
4
9
14
19
24
29
5
10
15
20
25
30
12a. Explain what a prime number is and give an example.
Any number that has the factors 1 and itself.
Give an example:
Sample answers
b.
Explain what a composite number is and give an example.
More than 2 facts.
Give an example:
Sample answers
1d. Identify prime and composite numbers.
0-2
3-4
5-6
1
2
3
13a. Is 384 divisible by:
(yes or no)
2
Yes
3
Yes
5
No
b. Name a number between 200 and 300 that is divisible by
2, 3, and 5.
Varies
1c. Use a divisibility test to determine if a number is divisible
by another number.
0-2
3-4
5-6
1
2
3
14. Write in exponential notation.
a. 8 x 8 =
82
22 x 53
c. 2 x 2 x 5 x 5 x 5 =
1b. Rename numbers written in exponential notation.
15.
33
b. 3 x 3 x 3 =
1
2
3
Write a number sentence and solve.
a. 7² =
7 x 7
=
49
b. 9² =
c. 6² = 6 x 6
=
36
d.
e.
²=9
3
5
f. 122 =
=
² = 25
144
1e. Understand how square numbers and their square
roots are related.
16.
9 x 9
0-3
4-6
7-9
1
2
3
Write the prime factorization for:
a. 8
4
2
2 2
2, 2, 2
b. 49
7 7
c. 100
7, 7
10
10
5 2
1a. Find the prime factorization of numbers.
5 2
1
2
2, 2, 5, 5
3
81