Question
There are 90 stickers in Box T and 50 stickers in Box U.
Some stickers are transferred from Box T to Box U.
Box T has 30 more stickers than Box U.
How many stickers are transferred from Box T to Box U?
4 m

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There are 90 stickers in Box T and 50 stickers in Box U.
Some stickers are transferred from Box T to Box U.
Box T has 30 more stickers than Box U.
How many stickers are transferred from Box T to Box U?