1. Solve by drawing: Re-draw answer 1st draw 3 groups and cross out 1 ½
of 4/5
Re-draw answer
and cross out 1 ½

2. Sketch the area model. Then write the equation and count up the product.
a) The area model contains:
1 flat
6 rods
8 unit cubes

____ x _____ = _____
b) The area model contains:
1 flat
7 rods
12 unit cubes

____ x _____ = _____

3. Draw a place value chart:
Ten thousands
Thousands
Hundreds
Tens
Ones
Take your white board supplies and find a place at one of the white boards.
I will label every other person “Alpha” and the remaining students are “Betas”

4. Explain what just happened as completely as possible!
Hundreds
Tens
Ones
Explain what just happened as
completely as possible!
Discuss. Both partners: write the answer on your mini-white boards.
There will be a part (b), too.

5. Part (a) again: WHAT HAPPENED?
Hundreds
Tens
Ones
Can you explain it and write an equation?
2 x 10 = 200
(b) Hundreds
Tens
Ones
20 x 10 = 200

6. Betas rotate clockwise to the next Alpha.

7. Explain what just happened as
(a) Hundreds
Tens
Ones
Explain what just happened as
completely as possible. There will be a part (b), too.

8. 2 x 100 = 200 2 x 1000 = 2000 Equations? (a) Hundreds Tens
Ones
Equations?
2 x 100 = 200
(b) Thousands
Hundreds
Tens
Ones
2 x 1000 = 2000

9. Write a RULE (in words) for multiplying by 10, 100, or 1000.