Standard Mathematics Primary 3 Length and Mass

A box of sand has a total mass of 5 kg 300 g. Ravi removes 2 kg 100 g of sand from the box. What is the mass of the remaining sand in grams?

A 3200 g
B 7400 g
C 5300 g
D 2100 g
Show Worked Solution

Worked Solution

Step 1: Convert the total mass to grams. 1 kg = 1000 g 5 kg 300 g = (5 × 1000) + 300 = 5000 + 300 = 5300 g Step 2: Convert the removed mass to grams. 2 kg 100 g = (2 × 1000) + 100 = 2000 + 100 = 2100 g Step 3: Subtract to find the remaining mass. 5300 g − 2100 g = 3200 g Answer: The remaining sand has a mass of 3200 g.

Correct answer: 3200 g

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free