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Picture of How to multiply decimals
Hi,
My mum's a teacher and she found thid really cool way of multiplying decimals in a teaching book. In the book it calls it 'Italian'.
Here goes...

Step 1: Table

Picture of Table
In this example, the sum is 35.8 times 4.6
Set out a rectangle like this:

(The dots are decimal points)
(The diagonal lines are important)
 
STEMsheets1 year ago

Very interesting, thanks for sharing this technique. This website has some multiplying decimals worksheets to practice with: http://stemsheets.com/math/multiplying-decimals-worksheet-horizontal

maxyor3 years ago
YOU NEED MORE STEPS and examples

HMice3 years ago
Huh?
Chaucermeow4 years ago
"Now, you must add the digits."

I am not seeing any addition in this particular step.
LiLGq4 years ago
i dont understand.....
NatNoBrains (author)  LiLGq4 years ago
Cool
nfk114 years ago
wow this is hard for me because im in 5th grade
MCzone4 years ago
Explain the *pundent* square for integers
NatNoBrains (author)  MCzone4 years ago
*Huh*
My teacher taught me this for mulitpying and dividing integers. example one positive and one negative make a negative, just follow the chart.
Punnett sqare.png
cokecola4 years ago
I think it's COOL!
NatNoBrains (author)  cokecola4 years ago
Thanks