Slice of Data Worksheet
Slice of Data
Calculating Quantities from Pie Charts
Name: Date:
Student Worksheet
The Golden Formula
\[\text{Part} = \text{Percent (as a decimal)} \times \text{Whole}\]
Conversion Cheat Sheet: Convert percent to a decimal by dividing by 100 (e.g., 35% → 0.35). Then multiply by the total.
1
Guided Practice: Campus Vehicles
A survey of the 4,000 vehicles on the campus of State University yielded the following pie chart. How many vehicles are hatchbacks?
Hatchback (35%)
Pickup (28%)
Sedan (4%)
Van (8%)
Convertible (16%)
Motorcycle (9%)
Step 1:
Identify the total (the Whole):
Step 2:
Identify the category Percent:
%
Step 3:
Convert the percent to a Decimal:
/ 100 =
Step 4:
Multiply the decimal by the whole:
× =
A) 1,400
B) 1,120
C) 160
D) 320
2
Practice: Pet Community Survey
A community survey of 1,200 local pets was collected and organized. How many of the surveyed pets are dogs?
Dog (45%)
Cat (30%)
Bird (12%)
Fish (5%)
Rabbit (8%)
Whole:
Percent: %
Decimal:
Show Your Calculation Work
A) 540
B) 360
C) 144
D) 96
Unit: Data Interpretation Page 1 of 2
Slice of Data • Independent Practice Name:
3
Practice: Public Library Catalog
A regional library cataloged its collection of 8,500 total books. How many books are classified as Children's books?
Fiction (50%)
Non-Fiction (25%)
Children's (14%)
Biography (7%)
Reference (4%)
Show Calculation Work
A) 4,250
B) 2,125
C) 1,190
D) 340
4
Practice: School Cafeteria Lunch Orders
The cafeteria recorded 250 lunch orders on Wednesday. How many students ordered salads?
Pizza (40%)
Burger (24%)
Salad (18%)
Sandwich (12%)
Pasta (6%)
Show Calculation Work
A) 100
B) 60
C) 45
D) 30
5
Practice: Smartphone Brand Sales
A mobile store tracked 6,000 smart phones sold last month. How many of those phones were Model B?
Model A (38%)
Model B (26%)
Model C (18%)
Model D (12%)
Model E (6%)
Show Calculation Work
A) 2,280
B) 1,560
C) 1,080
D) 720
Unit: Data Interpretation Page 2 of 2
Slice of Data Answer Key
Slice of Data
Calculating Quantities from Pie Charts • Answer Key
Name: Teacher Edition Date: Today's Key
Detailed Teacher Guide
Formula & Key Standards
\[\text{Part} = \text{Percent (as a decimal)} \times \text{Whole}\]
Teacher Note: This worksheet guides students to move from direct scaffolded fill-in-the-blanks to fully independent multiplication. Red/emerald indicators show worked answers and conversions.
1
Guided Practice: Campus Vehicles
A survey of the 4,000 vehicles on the campus of State University yielded the following pie chart. How many vehicles are hatchbacks?
Hatchback (35%)
Pickup (28%)
Sedan (4%)
Van (8%)
Convertible (16%)
Motorcycle (9%)
Step 1:
Identify the total (the Whole):
4,000
Step 2:
Identify the category Percent:
35%
Step 3:
Convert the percent to a Decimal:
35 / 100 = 0.35
Step 4:
Multiply the decimal by the whole:
0.35 × 4,000 = 1,400
A) 1,400
B) 1,120
C) 160
D) 320
2
Practice: Pet Community Survey
A community survey of 1,200 local pets was collected and organized. How many of the surveyed pets are dogs?
Dog (45%)
Cat (30%)
Bird (12%)
Fish (5%)
Rabbit (8%)
Whole: 1,200
Percent: 45%
Decimal: 0.45
Show Your Calculation Work
• \(\text{Part} = 0.45 \times 1,200\)
• \(\text{Part} = \mathbf{540}\)
A) 540
B) 360
C) 144
D) 96
Unit: Data Interpretation • Answer Key Page 1 of 2
Slice of Data • Answer Key (Page 2) Standard: 6.RP.A.3.C (Percentages)
3
Practice: Public Library Catalog
A regional library cataloged its collection of 8,500 total books. How many books are classified as Children's books?
Fiction (50%)
Non-Fiction (25%)
Children's (14%)
