Unit 4 Module 1
Session 1 class set, plus 1 copy for display
Answer Key
NAME
| DATE
Unit 4 Pre-Assessment page 1 of 4
1
Solve each problem. Use numbers, labeled sketches, or words to show your thinking.
a
Rico started running at 3:45 p.m. and ran for 42 minutes. He walked another
22 minutes until he got home. What time did he get home?
Work will vary.
42 + 22 = 64 minutes = 1 hour and 4 minutes
3:45 + 1:04= 4:49
Rico got home at 4:49 p.m.
b
The youth winner ran the race in 25 minutes 13 seconds. The adult winner ran
the same race in 23 minutes 39 seconds. Who ran faster? By how much?
Work will vary.
25:13 – 23:39 = 24:73 – 23:39 = 1:34
The adult winner ran the race faster by 1 minute and 34 seconds.
c
Tammy ran a 2K, a 5K, and then a 12K. How many meters did she run in all?
Work will vary.
2 + 5 + 12 = 19
1 km = 1000 m; 19 km = 19 × 1,000 = 19,000 m
Tammy ran 19,000 meters.
d
Tammy drank 1,100 ml of water before the race, 900 ml of water during the
race, and 2 liters of water after the race. How many milliliters of water did she
drink in all?
Work will vary.
1 l = 1000 ml; 2 l = 2 × 1,000 = 2,000 ml
1,100 + 900 + 2,000 = 4,000 ml
Tammy drank 4,000 milliliters of water.
(continued on next page)
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Unit 4 Module 1
Session 1 class set, plus 1 copy for display
Answer Key
NAME
| DATE
Unit 4 Pre-Assessment page 2 of 4
2
The planners want to provide 8 ounces of grapes for each runner at the end of the
race. The grapes they bought came in 6-pound bags. How many 8-ounce servings
of grapes can they get out of one 6-pound bag?
• Fill in the conversion table below to show how many ounces there are in 6 pounds.
• Use the information to figure out how many 8-ounce servings of grapes they
can get out of one 6-pound bag. Show your work.
Pounds
1
2
3
4
5
6
Ounces
16
32
48
64
80
96
Work will vary.
12 8-ounce servings of grapes out of one 6-pound bag.
They can get _____
3
Which is true?
!
!
4
!
1,000 kg = 1 g
1,000 m = 1 cm
Fill in the table.
Base Ten Numeral
Number Name
five hundred eighty-nine
500,000 + 80,000 +
9,000
+ 600 + 40 + 2
thousand six hundred forty-two
314,528
Three hundred fourteen thousand five 300,000 + 10,000 +
4,000 + 500 + 20 + 8
hundred twenty eight
five hundred forty-three thousand 500,000 + 40,000 +
two hundred ninety-one
3,000 + 200 + 90 + 1
Round 588,642 to the nearest
a
Expanded Form
589,642
543,291
5
!
60 minutes = 1 second
1 km = 1,000 m
hundred:
588,600
b
thousand:
589,000
c
ten thousand:
590,000
(continued on next page)
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Unit 4 Module 1
Session 1 class set, plus 1 copy for display
Answer Key
NAME
| DATE
Unit 4 Pre-Assessment page 3 of 4
6
Solve the problems below. For each one, fill in the bubble to show what method you
used, and explain why you chose that method.
a
699
+ 352
1,051
!
!
!
give and take
standard addition algorithm
other method (please describe)
I chose this method because:
The method chosen and explanation will vary. Example: 699 is very close to
700. Adding 1 to 699 and subtracting 1 from 352 makes the problem easier to
solve: 700 + 351 = 1,051
b
76,529
+ 25,776
102,305
!
!
!
give and take
standard addition algorithm
other method (please describe)
I chose this method because:
The method chosen and explanation will vary. Example: The standard
algorithm is a good choice because the numbers are big and not very friendly.
c
1,943
− 999
944
!
!
!
constant difference
standard subtraction algorithm
other method (please describe)
I chose this method because:
The method chosen and explanation will vary. Example: 999 is very close to
1,000. Adding 1 to 999 and to 1,943 makes the problem easier to solve:
1,944 – 1,000 = 944
d
87,643
– 25,835
61,808
!
!
!
constant difference
standard subtraction algorithm
other method (please describe)
I chose this method because:
The method chosen and explanation will vary. Example: The standard
algorithm is a good choice because the numbers are big and not very friendly.
(continued on next page)
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Unit 4 Module 1
Session 1 class set, plus 1 copy for display
Answer Key
NAME
| DATE
Unit 4 Pre-Assessment page 4 of 4
7
8
Use the symbols >, = or < to compare each pair of numbers.
a
397,000 > 379,000
b
12,489,090 < 12,489,900
Fill in the blanks.
1,572 − 199 = 1,573 − _____
200
9
22,387 + 21,238 = 22,400 + 21,225
_____
Jay solved the problems below with the standard algorithm. Fill in the boxes to
complete them correctly.
1
1
7 13
1
58,379
– 31,850
26,5 29
58,379
+ 31,850
90 ,229
10 Sage and Ethan are competing in a bicycle race. Sage biked 10,998 meters and Ethan
biked 15,324 meters. How much farther did Ethan bike than Sage? Show your work.
Work will vary. Example:
Use the constant difference method. Add 2 to 10,998 and to 15,324.
Then find the difference of those two numbers.
15,324 – 10,998 = 15,326 –11,000 = 4,326
Ethan biked 4,326 meters more than Sage.
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