Warm-up Number Talk: Many Hundredths
Find the value of each expression mentally.
Activity 1 Card Sort: Decimal Multiplication Card Sort
Your teacher will give you a set of cards that show multiplication expressions.
Sort the cards into 2 categories of your choosing. Then, sort the cards into 2 categories in a different way. Be prepared to explain the meaning of your new categories. (Pause for teacher directions.)
There are three expressions labeled A, B, and C. The value of each of the other expressions is equal to one of these. Match the expressions. Be prepared to explain your reasoning.
Choose one expression from each group to find the value of the expressions on cards A, B, and C.
Write at least one more expression that is equal to each of the expressions on cards A, B, and C.
Activity 2 Choose a Strategy
Find the value of each expression. Explain or show your reasoning.
Activity 3 More Multiplication Problems
Find the value of each expression.
Explain why each expression is equivalent to
Find the value of
using one of the expressions or your own strategy.