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'Watermelons' printed from http://nrich.maths.org/
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?