This Grade 3 worksheet focuses on adding and subtracting mass and volume within the same unit, such as 450 g plus 350 g equaling 800 g, or 2000 mL minus 750 mL making 1250 mL. Grade 3 learners practice matching calculations to their totals, strengthening fluency with grams, kilograms, milliliters, and liters in classroom and kitchen contexts. This Grade 3 sheet is perfect for classroom practice, homework, or small math group rotations.
Style:
Mass and Volume
Part A: Fill in the Blank
Write the missing word or number on each line.
1. In Grade 3: 450 g + 350 g = 800 g of flour.
2. In Grade 3: 2000 mL - 750 mL = 1250 mL of juice.
3. In Grade 3: 300 g + 250 g + 150 g = 700 g of fruit total.
4. In Grade 3: 1500 mL - 600 mL = 900 mL of water remain.
5. In Grade 3: 5 kg - 2 kg = 3 kg of rice left in the bag.
6. In Grade 3: 400 mL + 400 mL = 800 mL of milk combined.
7. In Grade 3: 900 g - 250 g = 650 g of sugar is left.
8. In Grade 3: 250 mL + 250 mL + 250 mL + 250 mL = 1000 mL of juice.
9. In Grade 3: 6 kg + 4 kg = 10 kg of apples in total.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
500 g + 500 g (Grade 3)
→ 1000 g
1000 g
2 L - 1 L (Grade 3)
→ 1 L
1 L
750 mL + 250 mL (Grade 3)
→ 1000 mL
1000 mL
900 g - 400 g (Grade 3)
→ 500 g
500 g
Mass and Volume
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) In Grade 3: 450 g + 350 g = 800 g of flour.
2) In Grade 3: 2000 mL - 750 mL = 1250 mL of juice.
3) In Grade 3: 300 g + 250 g + 150 g = 700 g of fruit total.
4) In Grade 3: 1500 mL - 600 mL = 900 mL of water remain.
5) In Grade 3: 5 kg - 2 kg = 3 kg of rice left in the bag.
6) In Grade 3: 400 mL + 400 mL = 800 mL of milk combined.
7) In Grade 3: 900 g - 250 g = 650 g of sugar is left.
8) In Grade 3: 250 mL + 250 mL + 250 mL + 250 mL = 1000 mL of juice.
9) In Grade 3: 6 kg + 4 kg = 10 kg of apples in total.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
500 g + 500 g (Grade 3)
→ 1000 g
1000 g
2 L - 1 L (Grade 3)
→ 1 L
1 L
750 mL + 250 mL (Grade 3)
→ 1000 mL
1000 mL
900 g - 400 g (Grade 3)
→ 500 g
500 g
Ready to Practice?
Complete each section carefully.
10 Questions
10-15 minutes
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