Problem. How much do weigh?

A crate full of apples weighs 36 kg but the fruits in the crate weigh 31 kg. How much do 21 empty fruit boxes weigh?

Fill in here

Exemple !

A crate full of apples weighs 22 kg but the fruits in the crate weigh 20 kg. How much do 12 empty fruit boxes weigh?

We calculate how much an empty crate weighs and then multiply the result by the number of crates.

22 - 20 = 2

12 × 2 = 24

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