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5.03 Multiply by 10

Lesson

Are you ready?

Remembering how to count by $10$10's can help us when we need to multiply by $10$10.

Complete the pattern by adding $10$10 each time.

  1. $20$20, $\editable{}$, $40$40, $\editable{}$, $\editable{}$

 

Learn

Let's look at how to multiply numbers by 10.

Vocabulary:

Another word that we can use to describe the ones place is 'units'.

Apply

$10\times4$10×4

Remember!

A quick way to multiply any whole number by $10$10 is to add a $0$0 at the end.

That moves all our numbers up one place in the place value table, with the $0$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.

Outcomes

3.4c

Demonstrate fluency with multiplication facts of 0, 1, 2, 5, and 10

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