Question
Adam has 80 cm of string.
He uses 50 cm of string.
He cuts the remaining string into length of 10 cm each.
How many 10-cm pieces of strings are there?
4 m

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Adam has 80 cm of string.
He uses 50 cm of string.
He cuts the remaining string into length of 10 cm each.
How many 10-cm pieces of strings are there?