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Published byRachel Pettis Modified over 3 years ago

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This slideshow is set up to demonstrate the partial product method. A detailed solution is offered for the traditional algorithm as well as the partial product method. You can focus on the partial products method, give students a choice, or have them solve each problem both ways.

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When students learn multiple ways to solve arithmetic problems, they can choose the way that works best for them. This can lead to kids feeling more successful, and in many cases it helps them to understand the math better.

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The benefits to exposing students to this method include: –It helps provide an understanding of what is happening when they use the traditional algorithm. –It provides the a chance to reinforce the pattern of multiplying by powers of ten. –It reinforces the definition of expanded form.

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Write the expanded form of each of number.

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Multiply both parts of the multiplicand (first or top number) by both parts of the multiplier (second or bottom number.)

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Write the expanded form of each of number.

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Multiply both parts of the multiplicand (first or top number) by both parts of the multiplier (second or bottom number.)

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Write the expanded form of each of number.

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Multiply both parts of the multiplicand (first or top number) by both parts of the multiplier (second or bottom number.)

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Write the expanded form of each of number.

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Multiply both parts of the multiplicand (first or top number) by both parts of the multiplier (second or bottom number.)

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Write the expanded form of each of number.

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Multiply both parts of the multiplicand (first or top number) by both parts of the multiplier (second or bottom number.)

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Write the expanded form of each of number.

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Multiply both parts of the multiplicand (first or top number) by both parts of the multiplier (second or bottom number.)

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Write the expanded form of each of number.

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Multiply both parts of the multiplicand (first or top number) by both parts of the multiplier (second or bottom number.)

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Write the expanded form of each of number.

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Multiply both parts of the multiplicand (first or top number) by both parts of the multiplier (second or bottom number.)

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