Number & Operations for Teachers 

Copyright David & Cynthia Thomas, 2009

Exercises

1. Sketch area models for the following operations and compute their products and quotients. Clearly label the connections between the models and the algorithms.

a. (0.50)(0.30)

b. (0.20)(1.50)

c. 0.48 ÷ 0.20

d. 1.50 ÷ 0.30

2. Create a concept card for

a. Decimal multiplication

b. Decimal division