Partial Products Multiplication

Post on 05-Jan-2016

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Partial Products Multiplication. Step by Step. 742 X 29. Expand each number. 742=700+40+2. 742 x 29. Expand each number. 742=700+40+2. 29 = 20+9. 742 x 29. Multiply 700 x 20. 742= 700 +40+2. 29 = 20 +9. 700 x 20 = 14000. 742 x 29. Multiply 700 x 9. 742= 700 +40+2. - PowerPoint PPT Presentation

Transcript of Partial Products Multiplication

Partial ProductsMultiplication

Step by Step

742 X 29

742=700+40+2

Expand each number.

742=700+40+2

29 = 20+9

Expand each number.

742 x 29

742=700+40+2

29 = 20+9

Multiply 700 x 20.

742 x 29

700 x 20 = 14000

742=700+40+2

29 = 20+9

Multiply 700 x 9.

742 x 29

700 x 20 = 14000

700 x 9 = 6300

742=700+40+2

29 = 20+9

Multiply 40 x 20.

742 x 29

700 x 20 = 14000

700 x 9 = 6300

40 x 20 = 800

742=700+40+2

29 = 20+9

Multiply 40 x 9.

742 x 29

700 x 20 = 14000

700 x 9 = 6300

40 x 20 = 800

40 x 9 = 360

742=700+40+2

29 = 20+9

Multiply 2 x 20.

742 x 29

700 x 20 = 14000

700 x 9 = 6300

40 x 20 = 800

40 x 9 = 360

2 x 20 = 40

742=700+40+2

29 = 20+9

Multiply 2 x 9.

742 x 29

700 x 20 = 14000

700 x 9 = 6300

40 x 20 = 800

40 x 9 = 360

2 x 20 = 40

2 x 9 = 18

742=700+40+2

29 = 20+9

Now, add all you products.

742 x 29

700 x 20 = 14000

700 x 9 = 6300

40 x 20 = 800

40 x 9 = 360

2 x 20 = 40

2 x 9 = + 18

21,518

742 x 29 =

21,518

What if there are decimals

in the problem???

What if there are decimals

in the problem???

If your problem has decimals in it, just count the number of digits behind the decimal points in your problem and put that many digits behind the decimal in your answer.

What if there are decimals

in the problem???

If your problem has decimals in it, just count the number of digits behind the decimal points in your problem and put that many digits behind the decimal in your answer.

35.4 * 3.42 = 121068

What if there are decimals

in the problem???

If your problem has decimals in it, just count the number of digits behind the decimal points in your problem and put that many digits behind the decimal in your answer.

35.4 * 3.42 = 121068

Where do I put my decimal?

What if there are decimals

in the problem???

If your problem has decimals in it, just count the number of digits behind the decimal points in your problem and put that many digits behind the decimal in your answer.

35.4 * 3.42 = 121068

Where do I put my decimal?

35.4 * 3.42 = 121068

I have 3 digits behind decimals in my problem..

What if there are decimals

in the problem???

If your problem has decimals in it, just count the number of digits behind the decimal points in your problem and put that many digits behind the decimal in your answer.

35.4 * 3.42 = 121068

Where do I put my decimal?

35.4 * 3.42 = 121068

I have 3 digits behind decimals in my problem..

So I will have 3 digits behind the decimal in my answer!!!

35.4 * 3.42 = 121.068

35.4 * 3.42 = 121.068

Cool man!! I can’t believe it’s so easy!!!!!!!!!!!