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Multiply Multi-Digit Whole Numbers

5.NBT.5
Answer Keys Here

Aligned To Common Core Standard:

Grade 5 Base Ten - 5.NBT.5

What Are the Basic Rules of Multiplication? Understanding mathematics is all about understanding the rules it entails. The course is filled with basic mathematical rules about each and every operation. This applies to all the rules; addition, subtraction, multiplication and division. However, there are a few more rules to follow in multiplication as it can make the operation easy to solve. If you are unaware of the basic rules to follow in multiplication operation, here we give you a run down on those. So, what are the basic rules of multiplication? 1. Tables: The first and the foremost rule for multiplying numbers is to know the tables. Knowing tables can help you jump to the next step quickly. 2. Multiplication with 1: The number stays the same when multiplied by 1. Example: 20 x 1= 20 3. Multiplication with 0: Any number multiplied by zero, the result will be zero. Example: 22 x 0 = 0 4. Double rule: It is important to remember these two special cases, when we are multiplying two numbers, we are actually doubling the number. For examples: 300 x 2 = 600 5. Order doesn't matter: Another rule to remember is that the order of numbers doesn't matter in multiplication. You can multiply in order and the result will be the same regardless. 6. Add zeros: Any number multiplied by 10, 100 or 1000 you can simply add zeros to the end in the respective order. Example: 32 x 10 = 320, 27 x 100 = 2700 and 45 x 1000 = 45000

Printable Worksheets And Lessons





Homework Sheets

The Xs denote the place holder of a zero in the example. I get asked that pretty often.

  • Homework 1 - Two step problem walk through.
  • Homework 2 - Use the box structure to your advantage.
  • Homework 3 - There are several steps to these problems.



Practice Worksheets

I only put three problems on here to give you extra work space.

  • Practice 1 - Keeping yourself organized is the key here.
  • Practice 2 - Line up each movement of values.
  • Practice 3 - Remember the value you need to attribute to the tens place.



Math Skill Quizzes

You will need some extra scrap paper for these quick quizzes.

  • Quiz 1 - We introduce the thousands place here.
  • Quiz 2 - even bigger values can be found here.
  • Quiz 3 - You may need extra scrap paper for this quiz.