Our class, during the next few weeks, will be learning to multiply by 2-digit whole numbers. We will also learn how to describe the reasonableness of an estimate.

The homework will provide practice with estimation and multiplication of numbers with more than 1 digit. There are seven sections in this chapter.

__Important Chapter Vocabulary:__
1.

**Compatible Numbers**; Numbers that are easy to compute with mentally.

2.

**Associative Property of Multiplication**; The property that states that when the grouping of factors is changed, the product remains the same.

3.

**Commutative Property of Multiplication**; The property that states when the order of two factors is changed, the product remains the same.

4.

**Estimate**; To find an answer that is close to the exact amount.

5.

**Partial Product**; A method of multiplying in which the ones, tens, hundreds, and so on are multiplied separately and then the products are added together.

6.

**Product**; The answer in a multiplication problem.

7.

**Regroup**; To exchange amounts of equal value to rename a number.