Question
There are 90 stickers in Box E and 20 stickers in Box F.
Some stickers are transferred from Box E to Box F.
Box E has 20 more stickers than Box F.
How many stickers are transferred from Box E to Box F?
4 m

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There are 90 stickers in Box E and 20 stickers in Box F.
Some stickers are transferred from Box E to Box F.
Box E has 20 more stickers than Box F.
How many stickers are transferred from Box E to Box F?