10/5 Multiplication Lesson

When we multiply by 10, the product is the number with 1 zero to the right.

When we multiply by 100, the product is the number with 2 zeroes to the right.

This strategy ONLY works when multiplying by 10, 100, 1,000.......you are only attaching the zeroes at the end.

When multiplying numbers such as 324 and 10, a student is expected to use the properties of operations and place value. (Expanded Notation)

Multiplying 324 by 10 means that each value from 324 is being multiplied by 10, so 324 x 10 = (300 + 20 + 4) x 10 = (300 x 10) + (20 x 10) + (4 x 10) = 3,000 + 200 + 40 = 3,240

You are going to work it out using the Formal strategy (expanded notation) on your paper.

Then, you will write your answer here.

Ex. (300 + 20 + 4) x 10 = (300 x 10) + (20 x 10) + (4 x 10) = 3000 + 200 + 40 = 3240

*Click the Shift button and the number 9 or 0 to get the parenthesis*

Go to google classroom, click classwork.

Click the one that says Concept Practice

Open the google slides and practice multiplying by 10s and 100s - Use your strategies

If you finish, you can do 25 minutes of I-ready and take the AR quiz for the 100 hungry ants.