## CHAPTER 2: NUMERATION

**Lesson 3: Solving Problems That Involve Large Numbers **

**Goal**

Solve problems and check solutions by estimating.

**Instructions for Use**

**Multiplication** allows you to estimate and calculate multiplication questions involving large numbers.

Type 1000 in the Largest Number box, then click “Continue.” Choose “10” for the number of problems, then click “Continue.” You will be given 10 questions. Estimate the answer, then calculate to see if your estimate was reasonable.