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What's My Weight?

There are four equal weights on one side of the scale and an apple on the other side. What can you say that is true about the apple and the weights from the picture?

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Pies

Grandma found her pie balanced on the scale with two weights and a quarter of a pie. So how heavy was each pie?

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Oranges and Lemons

On the table there is a pile of oranges and lemons that weighs exactly one kilogram. Using the information, can you work out how many lemons there are?

Watermelons

Stage: 2 Challenge Level: Challenge Level:1

 
 
Here are three watermelons.
The one in the front of the picture weights 7.35kg.
The one on the left of the picture weights 8.20kg.
The one on the right of the picture weighs 6.45kg.
 
 
In a melon-growing competition, a melon is awarded a point for each gram that it weighs.
How many points does each melon gain?
Can you explain how you worked this out?