# Place Value of Decimal Numbers

Activity: Discover decimal values for orange cubes with the orange square as the unit.

Let one orange square = 1If an orange square = 1, then one orange rod =

If an orange square = 1, then one white cube =

Solve problems like the following:

If one orange square = 1, then what is the value of each of the following sets?2 orange rods and 3 white cubes

1 orange rod, and 2 white cubes

3 white cubes

9 orange squares, 4 orange rods, and 5 white cubes

5 orange squares and 7 white cubes

2 orange cubes, 3 orange rods, and 8 white cubes

How many cubes, squares, and rods are needed to represent the following numerals?1.05

4.01

3.6

10.12

7.13

5

Dr. Robert Sweetland's Notes ©