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Dog Food Amount worksheet

Grades 9–10

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

1.
Problem 1.
- Dog's weight: 40 lb
- Life stage and activity: Puppy 4 months to adult
- Food: Dry (cups)
- Dry food calories per cup: 450 kcal
- Calories from treats: 10%
- Meals per day: 1
Find: Dry food per day
Answer
2.
Problem 2.
- Dog's weight: 25 lb
- Life stage and activity: Puppy under 4 months
- Food: Both
- Dry food calories per cup: 450 kcal
- Wet food calories per can: 300 kcal
- Share of food calories from wet food: 25%
- Calories from treats: 0%
- Meals per day: 2
Find: Dry food per day
Answer
3.
Problem 3.
- Dog's weight: 25 lb
- Life stage and activity: Adult, intact
- Food: Dry (cups)
- Dry food calories per cup: 300 kcal
- Calories from treats: 5%
- Meals per day: 3
Find: Dry food per day
Answer
4.
Problem 4.
- Dog's weight: 10 lb
- Life stage and activity: Adult, inactive or prone to weight gain
- Food: Dry (cups)
- Dry food calories per cup: 375 kcal
- Calories from treats: 5%
- Meals per day: 3
Find: Dry food per day
Answer
5.
Problem 5.
- Dog's weight: 40 lb
- Life stage and activity: Adult, inactive or prone to weight gain
- Food: Dry (cups)
- Dry food calories per cup: 375 kcal
- Calories from treats: 10%
- Meals per day: 1
Find: Dry food per day
Answer
6.
Problem 6.
- Dog's weight: 50 lb
- Life stage and activity: Puppy 4 months to adult
- Food: Wet (cans)
- Wet food calories per can: 450 kcal
- Calories from treats: 0%
- Meals per day: 3
Find: Wet food per day
Answer
7.
Problem 7.
- Dog's weight: 25 lb
- Life stage and activity: Adult, intact
- Food: Dry (cups)
- Dry food calories per cup: 350 kcal
- Calories from treats: 0%
- Meals per day: 3
Find: Dry food per day
Answer
8.
Problem 8.
- Dog's weight: 15 lb
- Life stage and activity: Puppy under 4 months
- Food: Dry (cups)
- Dry food calories per cup: 300 kcal
- Calories from treats: 5%
- Meals per day: 3
Find: Dry food per day
Answer
9.
Problem 9.
- Dog's weight: 50 lb
- Life stage and activity: Adult, intact
- Food: Both
- Dry food calories per cup: 375 kcal
- Wet food calories per can: 300 kcal
- Share of food calories from wet food: 50%
- Calories from treats: 10%
- Meals per day: 3
Find: Dry food per day
Answer
10.
Problem 10.
- Dog's weight: 70 lb
- Life stage and activity: Puppy 4 months to adult
- Food: Both
- Dry food calories per cup: 450 kcal
- Wet food calories per can: 200 kcal
- Share of food calories from wet food: 10%
- Calories from treats: 10%
- Meals per day: 1
Find: Dry food per day
Answer

Answer key: Dog Food Amount worksheet

1. Dry food per day: 2.46 cups
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $40 lb \times 0.45359237$ $= 18.1437 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {18.1437}^{0.75}$ $= 615.4 kcal/day$
3. Multiply by 2, the life stage factor, to allow for growth and activity
  $615.4 \times 2$ $= 1,230.8 kcal/day$
4. Take off the 10% of calories that treats will cover, so the day's total stays the same
  $1,230.8 \times 1 - 0.1$ $= 1,107.7 kcal$
5. Divide by the calories in one cup to see how many cups of dry food that is
  $\frac{1,107.7}{450}$ $= 2.4615 cups/day$
2. Dry food per day: 2.16 cups
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $25 lb \times 0.45359237$ $= 11.3398 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {11.3398}^{0.75}$ $= 432.6 kcal/day$
3. Multiply by 3, the life stage factor, to allow for growth and activity
  $432.6 \times 3$ $= 1,297.7 kcal/day$
4. Split the food calories between the two kinds: 75% dry, 25% wet
  $1,297.7 \times 0.75$ $= 973.3 kcal dry$
5. Divide by the calories in one cup to see how many cups of dry food that is
  $\frac{973.3}{450}$ $= 2.1628 cups/day$
6. Divide by the calories in one can to see how many cans of wet food that is
  $\frac{324.4}{300}$ $= 1.0814 cans/day$
7. Share it out across 2 meals
  $\frac{2.1628}{2}$ $= 1.0814 cups$
3. Dry food per day: 2.33 cups
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $25 lb \times 0.45359237$ $= 11.3398 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {11.3398}^{0.75}$ $= 432.6 kcal/day$
3. Start from the middle of the 1.6–1.8 life stage factor range, which allows for growth and activity
  $\frac{1.6 + 1.8}{2}$ $= 1.7$
4. Multiply the resting calories by that factor to get the day's calories
  $432.6 \times 1.7$ $= 735.4 kcal/day$
5. Take off the 5% of calories that treats will cover, so the day's total stays the same
  $735.4 \times 1 - 0.05$ $= 698.6 kcal$
6. Divide by the calories in one cup to see how many cups of dry food that is
  $\frac{698.6}{300}$ $= 2.3286 cups/day$
7. Share it out across 3 meals
  $\frac{2.3286}{3}$ $= 0.7762 cups$
4. Dry food per day: 0.61 cups
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $10 lb \times 0.45359237$ $= 4.5359 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {4.5359}^{0.75}$ $= 217.6 kcal/day$
3. Start from the middle of the 1–1.2 life stage factor range, which allows for growth and activity
  $\frac{1 + 1.2}{2}$ $= 1.1$
4. Multiply the resting calories by that factor to get the day's calories
  $217.6 \times 1.1$ $= 239.3 kcal/day$
5. Take off the 5% of calories that treats will cover, so the day's total stays the same
  $239.3 \times 1 - 0.05$ $= 227.4 kcal$
6. Divide by the calories in one cup to see how many cups of dry food that is
  $\frac{227.4}{375}$ $= 0.6063 cups/day$
7. Share it out across 3 meals
  $\frac{0.6063}{3}$ $= 0.2021 cups$
5. Dry food per day: 1.62 cups
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $40 lb \times 0.45359237$ $= 18.1437 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {18.1437}^{0.75}$ $= 615.4 kcal/day$
3. Start from the middle of the 1–1.2 life stage factor range, which allows for growth and activity
  $\frac{1 + 1.2}{2}$ $= 1.1$
4. Multiply the resting calories by that factor to get the day's calories
  $615.4 \times 1.1$ $= 676.9 kcal/day$
5. Take off the 10% of calories that treats will cover, so the day's total stays the same
  $676.9 \times 1 - 0.1$ $= 609.2 kcal$
6. Divide by the calories in one cup to see how many cups of dry food that is
  $\frac{609.2}{375}$ $= 1.6246 cups/day$
6. Wet food per day: 3.23 cans
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $50 lb \times 0.45359237$ $= 22.6796 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {22.6796}^{0.75}$ $= 727.5 kcal/day$
3. Multiply by 2, the life stage factor, to allow for growth and activity
  $727.5 \times 2$ $= 1,455 kcal/day$
4. Divide by the calories in one can to see how many cans of wet food that is
  $\frac{1,455}{450}$ $= 3.2333 cans/day$
5. Share it out across 3 meals
  $\frac{3.2333}{3}$ $= 1.0778 cans$
7. Dry food per day: 2.1 cups
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $25 lb \times 0.45359237$ $= 11.3398 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {11.3398}^{0.75}$ $= 432.6 kcal/day$
3. Start from the middle of the 1.6–1.8 life stage factor range, which allows for growth and activity
  $\frac{1.6 + 1.8}{2}$ $= 1.7$
4. Multiply the resting calories by that factor to get the day's calories
  $432.6 \times 1.7$ $= 735.4 kcal/day$
5. Divide by the calories in one cup to see how many cups of dry food that is
  $\frac{735.4}{350}$ $= 2.101 cups/day$
6. Share it out across 3 meals
  $\frac{2.101}{3}$ $= 0.7003 cups$
8. Dry food per day: 2.8 cups
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $15 lb \times 0.45359237$ $= 6.8039 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {6.8039}^{0.75}$ $= 294.9 kcal/day$
3. Multiply by 3, the life stage factor, to allow for growth and activity
  $294.9 \times 3$ $= 884.7 kcal/day$
4. Take off the 5% of calories that treats will cover, so the day's total stays the same
  $884.7 \times 1 - 0.05$ $= 840.4 kcal$
5. Divide by the calories in one cup to see how many cups of dry food that is
  $\frac{840.4}{300}$ $= 2.8015 cups/day$
6. Share it out across 3 meals
  $\frac{2.8015}{3}$ $= 0.9338 cups$
9. Dry food per day: 1.48 cups
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $50 lb \times 0.45359237$ $= 22.6796 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {22.6796}^{0.75}$ $= 727.5 kcal/day$
3. Start from the middle of the 1.6–1.8 life stage factor range, which allows for growth and activity
  $\frac{1.6 + 1.8}{2}$ $= 1.7$
4. Multiply the resting calories by that factor to get the day's calories
  $727.5 \times 1.7$ $= 1,236.7 kcal/day$
5. Take off the 10% of calories that treats will cover, so the day's total stays the same
  $1,236.7 \times 1 - 0.1$ $= 1,113.1 kcal$
6. Split the food calories between the two kinds: 50% dry, 50% wet
  $1,113.1 \times 0.5$ $= 556.5 kcal dry$
7. Divide by the calories in one cup to see how many cups of dry food that is
  $\frac{556.5}{375}$ $= 1.4841 cups/day$
8. Divide by the calories in one can to see how many cans of wet food that is
  $\frac{556.5}{300}$ $= 1.8551 cans/day$
9. Share it out across 3 meals
  $\frac{1.4841}{3}$ $= 0.4947 cups$
10. Dry food per day: 3.37 cups
1. Turn pounds into kilograms, the unit the calorie formula uses (1 lb = 0.45359237 kg)
  $70 lb \times 0.45359237$ $= 31.7515 kg$
2. Find the calories your dog burns at rest (RER): 70 times its weight in kg to the power 0.75
  $70 \times {31.7515}^{0.75}$ $= 936.3 kcal/day$
3. Multiply by 2, the life stage factor, to allow for growth and activity
  $936.3 \times 2$ $= 1,872.6 kcal/day$
4. Take off the 10% of calories that treats will cover, so the day's total stays the same
  $1,872.6 \times 1 - 0.1$ $= 1,685.4 kcal$
5. Split the food calories between the two kinds: 90% dry, 10% wet
  $1,685.4 \times 0.9$ $= 1,516.8 kcal dry$
6. Divide by the calories in one cup to see how many cups of dry food that is
  $\frac{1,516.8}{450}$ $= 3.3707 cups/day$
7. Divide by the calories in one can to see how many cans of wet food that is
  $\frac{168.5}{200}$ $= 0.8427 cans/day$