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40 votes
40 votes
A plank of wood is 4.6 meters long.

These two lengths of wood are cut from the plank - 88cm and 1630mm

What is the length of the wood left

User Frederika
by
2.7k points

1 Answer

20 votes
20 votes

Explanation:

1 meter = 100 centimeter = 1000 millimeter

therefore, 1 cm = 10 mm

4.6 m = 4.6 × 1000 = 4600 mm

88 cm = 880 mm

and so, they cut off

880 mm + 1630 mm = 2510 mm

that means

4600 - 2510 = 2090 mm = 2.09 m

are left.

User Jldupont
by
2.8k points