 Warm-up (on page ) Answer the following question in complete sentences. Think about multiplying. What is true about the product (answer)? How does it compare.

Presentation on theme: "Warm-up (on page ) Answer the following question in complete sentences. Think about multiplying. What is true about the product (answer)? How does it compare."— Presentation transcript:

Multiplying and Dividing Decimals by 10, 100, and 1,000 On page

The Basics of Multiplying: When you multiply by 10, 100, or 1,000, you can move the decimal point to the right. The number of decimal places you move is the same as the number of zeroes you are multiplying by. When you multiply by 10, 100, or 1,000, you can move the decimal point to the right. The number of decimal places you move is the same as the number of zeroes you are multiplying by.

Ex 1) 1.492 x 100 Move the decimal to the right: two spaces. 149.2

Ex 2)15.36 x 1,000 Move the decimal point to the right: three spaces. Add a zero for the third space. 15,360

The Basics of Dividing: When you divide by 10, 100, or 1,000, you can move the decimal point to the left. Move the decimal point once for each zero you are dividing by.

Ex 3) 2,124.94 ÷ 1,000 Move the decimal to the left: three spaces. 2.12494

Ex 4) 4.2 ÷ 100 Move the decimal point to the left: two spaces. Add a zero for the second space..042

Complete the Classwork on page 15. Raise your hand when you are done so that you can be checked off. Once you are finished, you may start on your homework.

Download ppt "Warm-up (on page ) Answer the following question in complete sentences. Think about multiplying. What is true about the product (answer)? How does it compare."

Similar presentations