A gasoline can was filled with 17.5 L of gasoline. A lawnmower fuel tank that holds 1.4 L has been filled 8 times from the gasoline can. How much gasoline is left in the can?

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Answer 1 · 2018-05-18T08:25:09

#11.2# litres have been taken out.

#6.3# litres are left.

You can think of this as a repeated subtraction.

Each time the lawnmower tank is filled, the fuel in the can decreases.

#17.5 - 1.4-1.4-1.4......(8 " times")#

However, this can be shown in a much shorter method by using multiplication.

#17.5- 8 xx 1.4#

#=17.5-11.2#

#=6.3# litres left in the can