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Party Food Quantity worksheet

Grades 5–6 · CCSS 6.RP.A.3.b

Solve each problem and show your work. Round answers to 2 decimal places where needed.

1.
Problem 1.
- Type of party: Buffet meal
- Adults and teens: 20
- Young children: 0
- Event length: 3 hours
- Extra for safety: 9%
Find: Main dish (cooked weight)
Answer
2.
Problem 2.
- Type of party: Appetizers only
- Adults and teens: 15
- Young children: 0
- Event length: 2 hours
- Extra for safety: 11%
Find: Appetizers
Answer
3.
Problem 3.
- Type of party: Buffet meal
- Adults and teens: 20
- Young children: 0
- Event length: 4 hours
- Extra for safety: 8%
Find: Main dish (cooked weight)
Answer
4.
Problem 4.
- Type of party: Appetizers only
- Adults and teens: 20
- Young children: 2
- Event length: 4 hours
- Extra for safety: 10%
Find: Appetizers
Answer
5.
Problem 5.
- Type of party: Dessert and drinks
- Adults and teens: 28
- Young children: 1
- Event length: 4 hours
- Extra for safety: 11%
Find: Desserts
Answer
6.
Problem 6.
- Type of party: Dessert and drinks
- Adults and teens: 18
- Young children: 2
- Event length: 3 hours
- Extra for safety: 11%
Find: Desserts
Answer
7.
Problem 7.
- Type of party: Appetizers only
- Adults and teens: 20
- Young children: 0
- Event length: 2 hours
- Extra for safety: 8%
Find: Appetizers
Answer
8.
Problem 8.
- Type of party: Appetizers only
- Adults and teens: 18
- Young children: 0
- Event length: 5 hours
- Extra for safety: 9%
Find: Appetizers
Answer
9.
Problem 9.
- Type of party: Dessert and drinks
- Adults and teens: 18
- Young children: 0
- Event length: 3 hours
- Extra for safety: 9%
Find: Desserts
Answer
10.
Problem 10.
- Type of party: Appetizers only
- Adults and teens: 28
- Young children: 2
- Event length: 2 hours
- Extra for safety: 10%
Find: Appetizers
Answer

Answer key: Party Food Quantity worksheet

1. Main dish (cooked weight): 8.2 lb
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $20 + 0.5 \times 0$ $= 20 portions$
2. Add your 9% safety margin, so big eaters and late arrivals are covered
  $20 \times 1.09$ $= 21.8 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $3 h - 1 h$ $= 2 h$
4. Main dish (cooked weight): 6 oz per guest, converted to pounds (16 oz = 1 lb)
  $\frac{6 oz}{16} \times 21.8$ $= 8.175 lb$
5. Drinks: 2 in the first hour plus 1 for each later hour, 4 per guest, rounded up to whole drinks
  $4 \times 21.8$ $= 87.2 → 88$
2. Appetizers: 167 pieces
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $15 + 0.5 \times 0$ $= 15 portions$
2. Add your 11% safety margin, so big eaters and late arrivals are covered
  $15 \times 1.11$ $= 16.65 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $2 h - 1 h$ $= 1 h$
4. Appetizers: 6 pieces in the first hour plus 4 for each later hour, 10 per guest, rounded up to whole pieces
  $10 \times 16.65$ $= 166.5 → 167$
5. Drinks: 2 in the first hour plus 1 for each later hour, 3 per guest, rounded up to whole drinks
  $3 \times 16.65$ $= 49.95 → 50$
3. Main dish (cooked weight): 8.1 lb
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $20 + 0.5 \times 0$ $= 20 portions$
2. Add your 8% safety margin, so big eaters and late arrivals are covered
  $20 \times 1.08$ $= 21.6 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $4 h - 1 h$ $= 3 h$
4. Main dish (cooked weight): 6 oz per guest, converted to pounds (16 oz = 1 lb)
  $\frac{6 oz}{16} \times 21.6$ $= 8.1 lb$
5. Drinks: 2 in the first hour plus 1 for each later hour, 5 per guest, rounded up to whole drinks
  $5 \times 21.6$ $= 108 → 108$
4. Appetizers: 416 pieces
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $20 + 0.5 \times 2$ $= 21 portions$
2. Add your 10% safety margin, so big eaters and late arrivals are covered
  $21 \times 1.1$ $= 23.1 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $4 h - 1 h$ $= 3 h$
4. Appetizers: 6 pieces in the first hour plus 4 for each later hour, 18 per guest, rounded up to whole pieces
  $18 \times 23.1$ $= 415.8 → 416$
5. Drinks: 2 in the first hour plus 1 for each later hour, 5 per guest, rounded up to whole drinks
  $5 \times 23.1$ $= 115.5 → 116$
5. Desserts: 64 servings
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $28 + 0.5 \times 1$ $= 28.5 portions$
2. Add your 11% safety margin, so big eaters and late arrivals are covered
  $28.5 \times 1.11$ $= 31.635 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $4 h - 1 h$ $= 3 h$
4. Desserts: 2 servings per guest, rounded up to whole servings
  $2 \times 31.635$ $= 63.27 → 64$
5. Drinks: 2 in the first hour plus 1 for each later hour, 5 per guest, rounded up to whole drinks
  $5 \times 31.635$ $= 158.175 → 159$
6. Desserts: 43 servings
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $18 + 0.5 \times 2$ $= 19 portions$
2. Add your 11% safety margin, so big eaters and late arrivals are covered
  $19 \times 1.11$ $= 21.09 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $3 h - 1 h$ $= 2 h$
4. Desserts: 2 servings per guest, rounded up to whole servings
  $2 \times 21.09$ $= 42.18 → 43$
5. Drinks: 2 in the first hour plus 1 for each later hour, 4 per guest, rounded up to whole drinks
  $4 \times 21.09$ $= 84.36 → 85$
7. Appetizers: 216 pieces
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $20 + 0.5 \times 0$ $= 20 portions$
2. Add your 8% safety margin, so big eaters and late arrivals are covered
  $20 \times 1.08$ $= 21.6 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $2 h - 1 h$ $= 1 h$
4. Appetizers: 6 pieces in the first hour plus 4 for each later hour, 10 per guest, rounded up to whole pieces
  $10 \times 21.6$ $= 216 → 216$
5. Drinks: 2 in the first hour plus 1 for each later hour, 3 per guest, rounded up to whole drinks
  $3 \times 21.6$ $= 64.8 → 65$
8. Appetizers: 432 pieces
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $18 + 0.5 \times 0$ $= 18 portions$
2. Add your 9% safety margin, so big eaters and late arrivals are covered
  $18 \times 1.09$ $= 19.62 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $5 h - 1 h$ $= 4 h$
4. Appetizers: 6 pieces in the first hour plus 4 for each later hour, 22 per guest, rounded up to whole pieces
  $22 \times 19.62$ $= 431.64 → 432$
5. Drinks: 2 in the first hour plus 1 for each later hour, 6 per guest, rounded up to whole drinks
  $6 \times 19.62$ $= 117.72 → 118$
9. Desserts: 40 servings
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $18 + 0.5 \times 0$ $= 18 portions$
2. Add your 9% safety margin, so big eaters and late arrivals are covered
  $18 \times 1.09$ $= 19.62 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $3 h - 1 h$ $= 2 h$
4. Desserts: 2 servings per guest, rounded up to whole servings
  $2 \times 19.62$ $= 39.24 → 40$
5. Drinks: 2 in the first hour plus 1 for each later hour, 4 per guest, rounded up to whole drinks
  $4 \times 19.62$ $= 78.48 → 79$
10. Appetizers: 319 pieces
1. Count guest portions. Each young child counts as half an adult, since children eat about half as much
  $28 + 0.5 \times 2$ $= 29 portions$
2. Add your 10% safety margin, so big eaters and late arrivals are covered
  $29 \times 1.1$ $= 31.9 portions$
3. Count the hours after the first one, because guests drink less once the first hour is over
  $2 h - 1 h$ $= 1 h$
4. Appetizers: 6 pieces in the first hour plus 4 for each later hour, 10 per guest, rounded up to whole pieces
  $10 \times 31.9$ $= 319 → 319$
5. Drinks: 2 in the first hour plus 1 for each later hour, 3 per guest, rounded up to whole drinks
  $3 \times 31.9$ $= 95.7 → 96$