Question
Some children board a school bus.
At Bus Stop A, 17 of them alight
and 10 children board.
If there are 28 children in the bus now,
how many children are on the bus at first?
3 m

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Some children board a school bus.
At Bus Stop A, 17 of them alight
and 10 children board.
If there are 28 children in the bus now,
how many children are on the bus at first?