Grade 5 Performance
Tasks Answer Key
Understanding Numbers
1.


Rounded
to the

Rounded
to the



Nearest
Million

Nearest
10 Million

1930

123,202,624

123,000,000

120,000,000

1940

132,164,569

132,000,000

130,000,000

1950

151,325,798

151,000,000

150,000,000

1960

179,323,175

179,000,000

180,000,000

1970

203,302,031

203,000,000

200,000,000

1980

226,545,518

227,000,000

230,000,000

2. & 3. Answers will vary
Using Addition and Subtraction


Rounded

Frontend
and
Adjusted


1.

2,353
+3,774

2,400
+3,800
6,200

2,353
+3,774
6,000


2. 
2,353
+3,774
6,127




3. 
4,250
3,065
1,185

4,300
3,100
1,200

4,250
3,065
<1,200


4. 
4,250
3,065
1,185




5. Answers

will

vary 


Adding and
Subtracting Decimals
1.Look for an accurate BAR graph (title, both axes labeled, appropriate
scale, and accurately plotted data).
2.
.336 Tony Gwynn 
.335 Willie McGee 
.330 Gary Sheffield 
.319 Terry Pendelton 
.313 Tony
Gwynn 
3.
4.
Tony Gwynn .336 rounds
to .34 
Willie McGee .335 rounds
to .34 
5. Answers will vary
Multiplying Whole Numbers
Estimation example:
6 x 4 = 24 Twentyfour rounds to 20. Four floors of 15 equals 60. Sixty
times 20 is equal to 60. Sixty time 20 is equal to 1,200. So Ted would
probably have enough tiles.
Answers will vary. Students should show evidence of rounding and/or frontend
estimation.
1. 24 tiles are needed for each kitchen. 6 x 4 = 24 sq.ft. or 24 ft. sq.
2. 1,440 tiles are needed to retile all kitchen floor areas in the building.
24 x 60 = 1,440 sq.ft. or 1,440 ft. sq.
3. $19.68 is the cost of retiling each kitchen.
4. $1,180.80 is the cost of retiling the entire building.
Dividing Whole Numbers: 1Digit Divisors
1. The range is 315 (from 9351,250).
2. The mode is 1,250
3. The median population is 1,160.
4. The mean population is 1,124. The student should explain the mean as
the arithmetic average and how he/she computed it.
5. Answer will vary.
Range  the difference between the greatest and the least number
in the set.
Median  the middle numbers when the set of numbers is listed in
order from the least to greatest.
Mode  the number or numbers that occur most often.
Dividing Whole Numbers: 2Digit Divisors
1. Least possible
quotient 

2.
Greatest possible quotient 

3. Answers
will vary. 

Multiplying and Dividing Decimals
1. 
Saturn 
24.95 or 25 gallons 

Corvette 
27.21 or 27 gallons 

Mustang 
21.38 or 21 gallons 

Jeep 
28.50 or 29 gallons 
2. 
Saturn 
$32.17 

Corvette 
$35.10 

Mustang 
$27.58 

Jeep 
$36.77 
3. 
Answers will vary 

Geometry
Answers will vary.
Understanding Fractions and Mixed Numbers
Answers will vary.
Adding and Subtracting Fractions
Answers will vary.
Multiplying and Dividing Fractions
1.

Price 
After 10 days 
After 20 days 
After 30 Days 
Jacket 
$120.00 
$90.00 
$80.00 
$60.00 
Shoes 
$40.00 
$32.00 
$24.00 
$16.00 
Shirt 
$12.00 
$9.00 
$8.00 
$4.00 
2. The following are the seven possible combinations of items that can
be purchased by spending between $90.00 and $100.00:
1 jacket 
$90.00 
3 pairs of shoes 
$96.00 
11 shirts 
$99.00 
10 shirts 
$90.00 
1 jacket and 1 shirt 
$99.00 
2 pairs of shoes and 4
shirts 
$96.00 
1 pair of shoes and 7
shirts 
$96.00 
3. No, you would not have enough money to buy 2 jackets at the price after
10 days. Each jacket would cost $80.00; therefore, 2 jackets would cost
$160.00 and you only have $100.00 to spend.
4. Yes, you could buy all three items because the total cost would be
$80.00, and you have $100.00 to spend.
Ratio and Probability
Answers will vary.
