Mass (Review)

What is the mass of the two balls?

• 1 kg

• 2 kg

• 6 kg

• 4 kg

What is the mass of the bag of coffee beans?

• 405 g

• 450 g

• 460 g

• 500 g

What is the mass of 4 such watermelons?

• 9 kg

• 12 kg

• 3 kg

• 4 kg

Answer explanation

1 watermelon is 3 kg

4 watermelons : 3 kg + 3 kg + 3 kg + 3 kg = 12 kg

Circle the lightest item.

Answer explanation

What is the total mass of the packet of rice and durian?

• 3 kg

• 8 kg

• 5 kg

• 7 kg

Answer explanation

Rice : 6 kg

Durian : 2 kg

Total : 6 kg + 2 kg = 8 kg

The mass of the 3 oranges is ___ g.

Answer explanation

Milk : 200 g

Milk + 3 Oranges : 350 g

So, 3 oranges : 350 g - 200 g = 150 g

Arrange the following objects starting from the lightest.

​ (a)   ,​ (b)   , ​ (c)  

• bag of muesli
• bar of chocolate
• plastic bottle of water
• 180 g
• 350 g
• 980 g

How heavy is the watermelon?

The watermelon is ​ (a)  

The watermelon is ​ (b)   heavier than the pineapple.

• 5 kg
• 3 kg
• 2 kg
• 1 kg
• 4 kg

Answer explanation

Watermelon is 5 kg.

To find how much heavier, we subtract.

5 kg - 2 kg = 3 kg