5. Multiplication fluency
5.07 Multiply by 10
Lesson
Are you ready?
Remembering how to count by $$10's can help us when we need to multiply by $$10.
Complete the pattern by adding $$10 each time.
$$20, $$, $$40, $$, $$
Learn
Let's look at how to multiply numbers by 10.
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Vocabulary:
Another word that we can use to describe the ones place is 'units'.
Apply
$$10×4
Remember!
A quick way to multiply any whole number by $$10 is to add a $$0 at the end.
That moves all our numbers up one place in the place value table, with the $$0 as a place holder in the ones column.
However, this rule is ONLY true for whole numbers, so you have to be careful once fractions or decimals are involved.