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UNIT 4 Review Topics 7

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Title: UNIT 4 Review Topics 7


1
UNIT 4 ReviewTopics 7 8
2
I can use the area model to multiply 2-digit
numbers.
3
1
Show how you can use the AREA MODEL to find the
produce for the problem below 27 x 35


4
Show how you can use the AREA MODEL to find the
product for the problem below 27 x 35
20
7
600 210
100 35
30
5
700
245
Answer 945
5
2
Show how you can use the AREA MODEL to find the
produce for the problem below 56 x 42


6
Show how you can use the AREA MODEL to find the
produce for the problem below 56 x 42
50
6
2000 240
100 12
40
2
Answer 2352
2100
252
7
I can use the partial products to multiply
2-digit numbers.
8
3
Use partial products to find the product to the
problem below 72 x 83
9
Use partial products to find the product to the
problem below 72 x 83
7 2
x 8 3
3 x 2 6
3 x 70 210 80 x 2
160 80 x 70 5600
5,976
10
4
Use partial products to find the product to the
problem below 46 x 59
11
Use partial products to find the product to the
problem below 46 x 59
4 6
x 5 9
9 x 6 54
9 x 40 360 50 x 6
300 50 x 40 2,000
2,714
12
5
MacKenzie multiplies 13 45. Which of the
following is NOT a partial product? A 15 B 50 C
90 D 400
13
I can use my knowledge of multiples of 10
to multiply 2-digit numbers.
14
6
The dentist ordered 10 boxes of toothbrushes.
There are 15 brushes in each box. How many
toothbrushes did the dentist order?
150 toothbrushes
15
7
Each of the 90 fourth-grade students at William
Street School read 30 books over the school year.
How many books did they read all together?
2,700 books
16
8
Every day, 60 people eat at Francos Diner. How
many people eat there in 30 days?
1,800 people
17
9
One centimeter is equal to 10 millimeters. If a
photo is 10 centimeters long, how many
millimeters long is the photo?
100 millimeters
18
I can round to estimate the product of a set of
numbers.
19
10
It took Anne 18 hours to drive from her home to
Miami. She drove about 62 miles each hour. How
can you estimate the distance from Annes home to
Miami?
20 x 60 1,200 miles
20
11
Meg saves 38 each week from the money she earns
working part time. How can you estimate how much
Meg will save in 52 weeks?
40 X 50 2,000
21
12
Carl volunteers about 32 hours each month at the
local hospital. How can you estimate how many
hours he volunteers in12 months?
30 X 12 360 hours
22
13
Andy is stacking 49 boxes of paper on the shelves
of an office supply store. Each box weighs about
28 pounds. What is the best estimate of the total
weight of the boxes?
50 30 1,500 pounds
23
I can use compatible numbers to estimate the
product of a set of numbers.
24
14
A park ranger takes 24 groups of people hiking
each week. There are 32 people in each group. How
can you use compatible numbers to find the
closest estimate of how many people hike with the
park ranger each week?
25 30 750 people
25
I can solve multiplication word problems.
26
15
Jacob reads 68 pages each night. How many pages
does Jacob read in a month with 31 days?
2,108 pages
27
16
Mark walks 30 minutes every day. How many minutes
does he walk in a month that has 31 days?
930 minutes
28
17
Mrs. Witt can type 58 words a minute. How many
words can she type in one hour?
3,480 words
29
18
There are 27 students in Mrs. Brunners class.
Each student does 15 math problems each night.
How many math math problems in all does the class
do in one night?
405 math problems
30
19
Each of the 27 students in Mrs. Smiths class
brought in18 aluminum cans during the class
recycling drive. How Many aluminum cans did Mrs.
Smiths class collect in all?
486 cans
31
20
17 students each brought in 20 cookies for the
school bake sale. How many cookies were there
at the bake sale?
340 cookies
32
21
Genna drinks 74 ounces of water a day. How much
water does she drink over 40 days?
2,960 ounces of water
33
22
One table in the school cafeteria can seat 12
students. How many students can be seated at
18 tables?
216 students
34
I can solve multi-step word problems.
35
23
Fourteen students in Ms. Engels class have 2
pets. Three students have 1 pet. There are 3
students that do not have any pets. How many pets
does the class have all together?
28 3 31 pets
14 2 28 3 1 3
36
24
Destiny is setting up chairs for a concert. One
section will have 5 equal rows of 15 chairs each.
The other section will have 8 equal rows of 12
chairs each. How many chairs will there be in all?
75 96 171 chairs
5 15 75 8 12 96
37
I can multiply 2-digit numbers.
38
25
Find the product. 76 18
1,368
39
I can write expressions to represent
multiplication word problems.
40
Write an equation that means 30 is 5 times as
great as 6.
26
30 5 x 6 or 30 6 x 5
41
Write a number sentence you could use to solve
the following word problemThere are 23 rows in
the auditorium and 18 chairs in each row. How
many total chairs are there in the auditorium?
27
23 x 18
42
Write a number sentence you could use to solve
the following word problemKatie bought 3 candy
bars that cost 2 each and 2 popcorns that cost
4 each. How much money did she spend?
28
(3x2) (2x4)
(6) (8) 14
Solve
43
Write a number sentence you could use to solve
the following word problemMrs. Beck took her
class of 23 students and 2 additional chaperones
on a field trip to the zoo. If admission to the
zoo is 8 per adult and 5 per student, what was
the total cost of admission?Solve
29
(3x8) (23x5)(24) (115)139
44
I can draw arrays to represent 2-digit
multiplication problems.
45
Draw an array to represent the 12 x 31
30
46
Draw an array to represent the 12 x 31
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