Mass and Volume — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Maya has 2 kg of apples. She gives away 500 g. How much is left in Grade 3?
A) 1500 g
B) 500 g
C) 2500 g
D) 250 g
2000 g minus 500 g equals 1500 g left.
2. A Grade 3 bag has 3 kg of rice. Another bag has 2 kg. Total mass?
A) 5 kg
B) 1 kg
C) 6 kg
D) 500 g
3 kg plus 2 kg equals 5 kg total.
3. A Grade 3 box has 4 books, each 250 g. What is the total mass?
A) 1000 g
B) 250 g
C) 500 g
D) 750 g
4 times 250 equals 1000 g, or 1 kg.
4. Sam has 1 kg of flour and uses 400 g. How much flour is left in Grade 3?
A) 600 g
B) 400 g
C) 1400 g
D) 100 g
1000 g minus 400 g equals 600 g remaining.
Part B: Fill in the Blank
Write the correct answer on each line.
1. In Grade 3, 1 kilogram is the same as 1000 grams.
1 kg equals exactly 1000 g.
2. A Grade 3 student has 800 g of nuts and buys 200 g more, total 1000 g.
800 + 200 = 1000 g, or 1 kg.
3. A Grade 3 puppy had a mass of 3 kg. After a month it was 5 kg. It gained 2 kg.
5 kg minus 3 kg equals 2 kg gained.
4. A Grade 3 box holds 6 cans, each 250 g. Total mass is 1500 g.
6 times 250 equals 1500 g total.
5. A Grade 3 shopper buys 2 kg of potatoes and 1 kg of onions. Total is 3 kg.
2 kg plus 1 kg equals 3 kg.