In this activity, you will learn how to round numbers to the **nearest 1,000 **in order to estimate the answer to a multiplication.

**Rules for rounding to the nearest 1,000**

To round to the nearest **1,000,** look at the hundreds digit.

If the hundreds digit is** 5 or more, round up.**

If the hundreds digit is** 4 or less, round down.**

**7,434 would be rounded down to 7,000.**

**9,981 would be rounded up to 10,000.**

**12,678 would be rounded up to 13,000.**

**Example:**

**2,624 x 1,122 = ?**

Round each number to the nearest 1,000 first

2,624 3,000

1,122 1,000

Now calculate: **3,000 x 1,000 = ?**

3 x 1 x 1,000 x 1,000 =

3 x 1,000,000 = **3,000,000 (3 million)**