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Multiply Using Expanded Form Practice
haleema_s_96972
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• Slide 1
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Multiply Using Expanded Form Practice

(it is basically the same thing as using the distributive property) • Slide 2
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So far we have learned how to....

Use the distributive property to break apart factors 4 x 12 as (4x10) + (4x2) Using the expanded form is pretty much the same thing. We just use it with even bigger numbers

• Question 3
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Q.

3. What is expanded form for the number 17?

(10+7)

(1+7)

• Question 4
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Q.

4. What is 147 in expanded form?

(100+40+7)

( 1+4+7)

• Slide 5
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Now we can use expanded form to multiply bigger numbers!!!

Subtitle
• Slide 6
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4 x 212

212= (200 + 10 + 2)

(4x200) + (4x10) + (4x2)

(800) + (40) + (8)= 848

Subtitle
• Question 7
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Q.

Which shows how you can break up 2 x 43?

(2x40) +(2x3)

(2x4)+(2x3)

• Question 8
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Q.

What is the product of 2 x 43?

38

86

30

• Slide 9
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Using the expanded form to multiply

• Think of the number in expanded form

• Multiply the other factor with the value of the first digit

• Continue multiplying

• Slide 10
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6 x 351

• 351 = (300 + 50 + 1) expanded from

• (6 x300) + (6x50) +(6x1)

• (1800)+(300)+(6)

• 1800+300= 2100 (think 18 +3 = 21)

• 2100+6= 2106

• 2106

• Slide 11
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3 x 363

• 363= (300 +60 +3)

• (3 x 300) + (3 x 60) + (3 x 3)

• (900) + (180) + (9)

• 1,089

• Question 12
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Q.

5 x 234 