Measuring Weight (Kilograms and Grams) Worksheets - Free Printable

Let’s go step by step to solve each problem on the worksheet.

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First, remember:
- 1 kilogram (kg) = 1000 grams (g)
- So to convert kg → g, multiply by 1000.
- To convert g → kg, divide by 1000.

Also, for real-life objects:
- A squirrel is light — about 1 kg or less.
- A cell phone is very light — around 100–200 grams.
- A watermelon is heavy — usually 2–5 kg.

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Now let’s solve each question:

Fill in the blanks (conversion practice):

3 kg = ___ g
→ 3 × 1000 = 3000 g

6000 g = ___ kg
→ 6000 ÷ 1000 = 6 kg

3 kg + 1000 g = 3000 g
→ 3 kg = 3000 g, so 3000 g + 1000 g = 4000 g? Wait — the worksheet says “= 3000 g” — that must be a typo. Let me check again.

Actually, looking at the worksheet:
It says:
“3 kg + 1000 g = 3000 g” — that’s wrong.
But maybe it’s meant to be filled in? No — actually, looking closely, those are examples already solved? Wait no — the student is supposed to fill them in? Actually, in the image, some are blank and some have answers written? But since we’re solving from scratch, let’s do all conversions correctly.

Wait — re-examining the worksheet layout:

The top part has:
> 3 kg = ___ g → should be 3000
> 6000 g = ___ kg → 6
> 3 kg + 1000 g = ___ g → 3000 + 1000 = 4000
> 6000 g - 1000 g = ___ kg → 5000 g = 5 kg
> 3 kg = 3000 g → already given
> 6000 g = 6 kg → already given

But in the actual worksheet image, some of these are pre-filled as examples? The user didn’t specify which ones to solve — but since the instruction is to solve the problem accurately, I’ll assume we need to complete ALL unanswered parts.

Looking at the numbered questions below:

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Multiple Choice Questions:

1. A squirrel weighs about...
Options: a. 10 grams, b. 100 grams, c. 1 kilogram
→ Squirrels weigh around 300–700 grams, so closest is c. 1 kilogram (since 10g and 100g are too light).

2. A cell phone weighs about...
Options: a. 1 gram, b. 120 grams, c. 2 kilograms
→ Phones are around 150–200g, so b. 120 grams is reasonable.

3. A watermelon weighs about...
Options: a. 500 grams, b. 2 kilograms, c. 13 kilograms
→ Watermelons are typically 2–5 kg, so b. 2 kilograms is best. (13kg is too heavy for average, 500g is too light.)

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Conversion Problems:

4. 8 kg = ___ g
→ 8 × 1000 = 8000 g

5. 2000 g = ___ kg
→ 2000 ÷ 1000 = 2 kg

6. 5000 g = ___ kg
→ 5000 ÷ 1000 = 5 kg

7. 7 kg = ___ g
→ 7 × 1000 = 7000 g

8. 10000 g = ___ kg
→ 10000 ÷ 1000 = 10 kg

9. 30 kg = ___ g
→ 30 × 1000 = 30000 g

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Word Problem:

10. Jon’s cat weighs 4 kg. Carl’s cat weighs 2900 grams. Whose cat is heavier? Explain.

Convert both to same unit.

Jon’s cat: 4 kg = 4 × 1000 = 4000 grams

Carl’s cat: 2900 grams

Compare: 4000 > 2900 → Jon’s cat is heavier.

Explanation: Since 4 kg equals 4000 grams, and 4000 is more than 2900, Jon’s cat weighs more.

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Now, double-checking all calculations:

- 3 kg = 3000 g ✔
- 6000 g = 6 kg ✔
- 3 kg + 1000 g = 4000 g (but worksheet may have intended this as example — if left blank, answer is 4000)
- 6000 g - 1000 g = 5000 g = 5 kg ✔
- 8 kg = 8000 g ✔
- 2000 g = 2 kg ✔
- 5000 g = 5 kg ✔
- 7 kg = 7000 g ✔
- 10000 g = 10 kg ✔
- 30 kg = 30000 g ✔
- Cat comparison: 4 kg = 4000 g > 2900 g → Jon’s cat heavier ✔

Multiple choice:
1. c. 1 kilogram ✔
2. b. 120 grams ✔
3. b. 2 kilograms ✔

All correct.

Final Answer:
1. c
2. b
3. b
4. 8000
5. 2
6. 5
7. 7000
8. 10
9. 30000
10. Jon’s cat is heavier because 4 kg = 4000 grams, which is more than 2900 grams.