Multi-Digit Multiplication: 3 Strategies

There are many ways to solve multi-digit multiplication problems. Choose the strategy that works with your brain! Here are three of them...

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No matter which strategy we use, the solution remains the same!

427 x 24 = 10,248

If you do not have your X Facts memorized, 5th grade math can take a long time to calculate. I would suggest gluing a Multiplication Chart onto the inside of your Math notebook cover. That way you can refer to it all year.

[click here for a printable X Chart]

  
Here are a few sites that may help with multiplication...

X GAMES!

Partial Product Jeopardy

The Amoeba Multiplication Game

multiplication.com

Timez Attack

  

Keep up the great work, kids!

Partial Products

 This week in Class Connect we are learning how to

 multiply multi-digit numbers using partial products.

 There are many ways to multiply multi-digit numbers. One way is my using a standard algorithm, or recipe. This week we talked about a newer method called The Partial Product Method. Partial products are used as intermediate steps in calculating larger products.  

Here is a video explaining how to solve a multiplication problem
using the Partial Product Method.

When solving problems like this, it's very important to write neatly and keep everything lined up. One trick is to use graph paper instead of lined paper. The grids help with lining numbers up before you add.

If you do not have your X Facts memorized, 5th grade math can take a long time to calculate. I would suggest printing the Multiplication Chart below and gluing it onto the inside of your back spiral cover. That way you can refer to it all year.

[click here for a printable X Chart]

 
Here are a few sites that may help with multiplication...

X GAMES!

Partial Product Jeopardy

The Amoeba Multiplication Game

multiplication.com

Timez Attack

 

Keep up the great work, kids!

2-Digit Multiplication

This week in Class Connect we are learning how to multiply multi-digit numbers (2-digit numbers to be exact.

Let's review a couple helpful vocabulary words from this lesson...

Here is a video tutorial to help you understand how to multiply multi-digit numbers.

Don't forget the magic ZERO to hold your place before switching to the tens place!

When solving problems like this, it's very important to write neatly and keep everything lined up. By using a data box, all information will be in one place. The grid helps with lining numbers up before you add.

Here is an example of a data box. Thanks Matthew!

[click on the image for a closer look]

In math class this year, you have learned about partial products too.   When solving multi-digit math problems, use the strategy that works for you.

Thanks for the sweet graphics Mr. Elementary Math!

Here's a video to help understand partial products, if that's more your style.

X GAMES!

Partial Product Jeopardy

The Amoeba Multiplication Game

multiplication.com

Timez Attack

Happy Thanksgiving!

Math Help: Partial Products

Many students are having a hard time with Unit 1: Partial Products. I found this helpful video that might demystify it for you!



Keep those math questions coming! When you need help with a concept, others probably do too. If you let me know, I can find resources and post them here.

You may also find this site handy as you travel through math this year. Concepts are explained in a simple way, and many explanations are interactive.

A Maths Dictionary

Thanks!