How To Break Apart Multiplication
Students usually learn their twos and their fives sooner than the larger times tables so that when faced with a problem like 6 X 7 students can instead look at the 7 as a 52 instead. Breaking a multiplication problem into 2 or more parts can make the problem easier to solve.
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A step by step review of using break apart numbers or expanded form to solve double digit multiplication.
How to break apart multiplication. This strategy is based on the distributive property. But several years ago California adopted the Common Core State Standards. There is more than one correct way to break apart an array.
Breaking apart arrays is another effective strategy for students who are learning multiplication and helps model distributive property. After we read Danielles equation aloud I asked How can we use multiplication to write an equation that uses Danielles idea. Break apart large multiplication problems into smaller problems.
The first slide demonstrates how to use the break apart method to break apart a 3 digit number by place value multiply by the 1 digit number and then add it t. Multiply 234 by 56. Begin with the concrete manipulatives I like to use candy like mini M Ms to physically build and break apart arrays to show the distributive property.
Once you complete the multiplication follow these two rules. Break apart method multiplication Google Search break apart multiplication worksheets grade 5 breaking apart multiplication worksheets break apart numbers to multiply worksheets break apart multiplication worksheets 3rd grade free break apart multiplication worksheets via. 6 X 52 OR 6 X 2 6 X 5 12 30 42.
Breaking Apart Factors Strategy for Multiplication This video explains how you can break apart factors to solve multiplication problems. If one number is positive and one number is negative make the product negative. Write the distributive property used underneath each new array set.
If both numbers are negative or both numbers are positive make the product positive. As students invent partial product strategies they can break one or both factors apart. I called on Danielle.
The first one is done for you. To break apart multiplication facts was just not on my radar. Can you think of other ways to break apart the 6 X 6 array that are not pictured.
Use the Distributive Property Candy Shop as a concrete way to teach the distributive property of multiplication. This resource is a great way to teach multiplication 3x1 digit and 2x2 digit and then give students the opportunity to practice it as well. 5 5 5 5 4 24.
How about another way to break apart twenty-four I asked. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators. Stack the numbers with the larger number on top.
Step-by-step tutorial on how to use the break apart method for multi-digit multiplication. It also shows how you can round one factor to multiply an easier equation and then subtracting the difference to solve. It includes lessons that teach students how to break apart a number into its expanded form multiply each part separately and then add the partial pr.
Distributive Property of Multiplication. Five plus five plus five plus five plus four she said. When students break apart factors into addends through expanded form and distributive property then they can use the smaller problems to solve more difficult ones.
Lets start with a warm-up problem to avoid getting any mental cramps as we learn new things so this is a problem that hopefully if you understood what we did in the last video you can kind of understand what were about to do right now and Im going to escalate it even more in the last video we finished with a I think we finished with a four digit number times a one digit number lets lets. This lesson workbook makes it easy to teach clear sequential lessons with plenty of step-by-step practice. When standards were introduced at the state level in the late 1990s and early 2000s the Distributive Property of Multiplication was still relegated to middle school math for the most part.
Next move to representation.
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