# Surf for More Math

## Lesson 5 **- Multiplying Multiplies of Ten by Tenths**

To encourage your child to have fun on the Web
while learning about Multiplying Multiplies of Ten by Tenths, here are
some games and interactive activities they can do on their own or in
pairs.

**Goal**

Multiply to calculate the decimal portion of a multiple of 10.

**Builds Upon**

Student Book pages 276-277

**Instructions for Use**

Interactive
Calculator lets your child multiply multiples of ten by tenths.

To use the interactive calculator, start by pressing any decimal tenth
- try 0.3. This number will appear in the window of the calculator.
Press the 'X' button on the calculator, and press 450. Press the ' ='
button on the calculator to show the answer.

Multiply other decimal tenths by multiplies of ten.