📊🤔 Explore A - Lesson 3.13 Multiples of Ten With Arrays

Play media comment.For this lesson you will use base ten blocks (or number pieces app) and small graph paper pdf (found in lesson).

Part 1

How would you model $2\times11$ ?

Play media comment.How would you model $2\times15$ ?

How would you model $2\times20$ ?

Play media comment.

Part 2

Multiply by multiples of 10 using arrays Links to an external site.

Play media comment.Part 3

How would you model $2\times50$ ?

Now push the blocks together, end to end.  What do you see?

This is array has now become an area model.

Repeat for $3\times40$  and  $5\times30$  .