Find the value of each expression mentally.

Draw a line to match expressions with the same value.

If you have time: Write another expression with 3 numbers. 2 of the numbers should make 10.

Ask your partner to think of the matching  expression.

Determine whether each equation is true or false.
Be ready to explain your reasoning.

If you have time:

1. Make any false equations true.
2. Write 1 equation that is true and 1 that is false.
   Switch with your partner.

Write a  expression that has the same value as each expression.

If you have time, write as many expressions as you can with 3 numbers that have the same value as .