1. Modeling Multiplication of Decimals
with Base Ten Blocks

2. First, what let’s decide what 1 whole will look like…
Let’s choose the flat for today.

3. It’s 1 unit wide and 1 unit long.
1 x 1 = 1

4. One tenth of the flat is a rod.

5. The rod is one unit long by a tenth wide.
0.1 1
1 x 0.1 = 0.1

6. One tenth of the rod is the unit cube.

7. One tenth of the rod is the unit cube.

8. one hundredth
0.1
0.1
0.01
0.1 x 0.1 = 0.01

9. Let’s model 1.2 x 2.3 Width of 1 whole and two tenths
Fill in
Width of 1 whole and two tenths
Length of 2 whole and three tenths

10. Let’s model 1.2 x 2.3
= 2. 76
Fill in
Product  2 whole, 7 tenths, 6 hundredths
 2.76

11. Let’s model 1.3 x 0.7 Width of seven tenths
Fill in....
Length of 1 whole and three tenths

12. Let’s model 1.3 x 0.7 0.91 = 0.91 Product 7 tenths +21 hundredths
Fill in....
Product
7 tenths +21 hundredths
0.91