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Inessa [10]
3 years ago
14

klaus was replacing the roof on his house. He used 420 nails to attach al the pieces of wood. Each piece of wood needed 7 nails

to hold it in place. He used 40 pieces of wood. How many pieces were left?
Mathematics
1 answer:
hjlf3 years ago
6 0

There were 20 pieces of wood left.


Work:

420 ÷ 7 = 60

60 - 40 = 20


Your answer is 20.


Hope this helps!

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