Let’s solve each problem one by one.
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Problem 1: Ms. Bezel’s jewelry order
She ordered:
- 500 grams of silver
- 800 grams of bronze
- 700 grams of copper
All are in grams, and the question asks for total
kilograms.
Step 1: Add all grams together.
500 + 800 + 700 = 2000 grams
Step 2: Convert grams to kilograms.
We know: 1000 grams = 1 kilogram
So, 2000 grams ÷ 1000 = 2 kilograms
✔ Answer:
2 kilograms
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Problem 2: Eric’s dog food
He feeds his dog 250 grams per day, twice a day.
Step 1: How much per day?
250 grams × 2 = 500 grams per day
Step 2: The bag has 2 kg of food. Convert that to grams to match units.
2 kg = 2000 grams
Step 3: How many days will it last?
2000 grams ÷ 500 grams/day = 4 days
✔ Answer:
4 days
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Problem 3: Mr. Snow’s Christmas candy
He bought 90 grams per grandchild, and he has 14 grandchildren.
Step 1: Total grams = 90 × 14
Let’s calculate:
90 × 10 = 900
90 × 4 = 360
900 + 360 = 1260 grams
Step 2: Convert to kilograms.
1260 grams ÷ 1000 = 1.26 kilograms
✔ Answer:
1.26 kilograms
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Problem 4: Vet’s medication for Manuel the dog
Manuel weighs 12 kilograms.
Medication: 5 milligrams per 1 kilogram.
Step 1: Multiply weight by dosage per kg.
12 kg × 5 mg/kg = 60 milligrams
✔ Answer:
60 milligrams
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Problem 5: Sarah’s groceries
She bought:
- 8 kg of sugar
- 10 kg of flour
- 500 g of cocoa
- 225 g of pecans
- 275 g of coconut
Step 1: Add the grams first.
500 + 225 + 275 = 1000 grams = 1 kg
Step 2: Add all kilograms.
8 + 10 + 1 = 19 kg
✔ Answer:
19 kilograms
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Problem 6: Adult dosage of aspirin
Each tablet is 325 mg.
Take 1 or 2 tablets every 4 hours.
Do NOT exceed 12 tablets in 24 hours.
Question: What is the maximum amount (in grams) an adult should take in one day?
Step 1: Max tablets per day = 12
Step 2: Total mg = 12 × 325 mg
Let’s compute:
10 × 325 = 3250
2 × 325 = 650
3250 + 650 = 3900 mg
Step 3: Convert mg to grams.
1000 mg = 1 gram → 3900 mg ÷ 1000 = 3.9 grams
✔ Answer:
3.9 grams
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Final Answer:
1. 2 kilograms
2. 4 days
3. 1.26 kilograms
4. 60 milligrams
5. 19 kilograms
6. 3.9 grams
Parent Tip: Review the logic above to help your child master the concept of unit conversion word problems worksheet.
