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Name
7-3
Solve.
Show your work.
1. Becky’s garden is 21 meters wide.
Jerry’s garden is 17 meters wide.
How much wider is Becky’s garden
than Jerry’s garden?
4
meters
unit
2. Hannah’s painting is 39 inches long.
She adds 12 inches to it. How long
is the painting now?
51
inches
unit
Use the number line diagram to add or subtract.
3. Loop 28 and 56. Loop the difference D.
28 units
How long is it?
© Houghton Mifflin Harcourt Publishing Company
D
0
5
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
4. Loop 48. Add 15 to it. Loop the total T.
63 units
How long is it?
T
0
5
10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
UNIT 7 LESSON 3
Length Word Problems and Number Line Diagrams
191