⚖️ Year 3 Mass Activity – Step-by-Step Explanation

1. A box contains 4 packets of sugar. Each packet weighs 250 g.
Step 1: What is the total weight of the sugar packets?

Total weight = g

Step 2: If 350 g is taken out, how much sugar is left in the box?

Sugar left = g

2. A watermelon weighs 8 kg and a melon weighs 5 kg less than the watermelon.
Step 1: What is the weight of the melon?

Weight of melon = kg

Step 2: What is the total weight of both fruits together?

Total weight = kg

3. A packet of flour weighs 1 kg 200 g.
Step 1: Convert the weight fully into grams.

Weight in grams = g

Step 2: If 400 g is used from the packet, how much is left?

Weight left = g

4. A child has a 500 g bag of rice and adds 250 g more. What is the total weight now?

Total weight = g

Step 2: If the child gives away 150 g, how much rice is left?

Rice left = g

5. A spaceship carries 3 boxes. Each box weighs 200 g. What is the total weight of all boxes?

Total weight = g

Step 2: If one box is removed, what is the weight of the remaining boxes?

Remaining weight = g