IXL | Multiply numbers ending in zeros: word problems

There are 800 boxes of books in the storeroom. Each box has 70 books. How many books are there in all?

books

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question

A notebook company makes notebooks with covers in 9 different colors. A school district ordered 100 notebooks in each color. How many notebooks in total did the school district order?

notebooks

solution

There are 9 colors of notebook, and the school district ordered 100 of each. Multiply 9 by 100.

First, multiply the non-zero parts of the numbers:

9 × 1 = 9

Now add back the zeros at the end:

900

The school district ordered 900 notebooks.

Looking for more? Try these:

Lesson: Multiplying multiples of 10

Lesson: Multiplying by 2-digit numbers

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Teacher tools

Work it out

Not feeling ready yet? These can help:

D.2Multiply numbers ending in zeros

I.10Multiply a 2-digit number by a 2-digit number

I.11Multiply a 2-digit number by a 2-digit number: word problems

Lesson: Multiplying multiples of 10

Lesson: Multiplying by 2-digit numbers

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