Question
There are 63 yellow balls and 21 silver balls in a basket. 29 of the yellow balls are blemished. All the silver balls are not blemished. How many more yellow balls than silver balls are not blemished?
4 m

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There are 63 yellow balls and 21 silver balls in a basket. 29 of the yellow balls are blemished. All the silver balls are not blemished. How many more yellow balls than silver balls are not blemished?