anonymous
  • anonymous
The question is 7.86*4.6=? >I got as far as multiplying the 6 times 7.86 to get 4716 >Then 4 times 7.86 to get 3144 >and added them to get 7806 (The answer is 36.156 & this is how I was told to do it) What am I doing wrong?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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blurbendy
  • blurbendy
nevermind, i see, you're trying to do it by hand
anonymous
  • anonymous
Right, no calculators allowed. Trying to learn to do with out for a test.
johnweldon1993
  • johnweldon1993
So first 3 7.86 x 4.6 ------ 4 7 1 6 Then when you do 7.86 times 4....you need to add a 0 as the first number 3 7.86 x 4.6 ------ 4 7 1 6 3 1 4 4 0 ----------- 3 6 . 1 5 6

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anonymous
  • anonymous
AWESOME!! Thanks SO much! just one question, could you explain the placement of the zero? or is it because the number (6) is supposed to be before the four?
anonymous
  • anonymous
*for future reference to remember TO add the zero and why*
johnweldon1993
  • johnweldon1993
Hmm... well when you multiplied the second part,you add a "0" to that answer because you were multiplying the value from the tens column. If it's from the tens, add a zero. If it's from the hundreds, you would add two zeros. So it would be the same...if you have 7.86 * 100 you do 7.86 * 0 = 000 then 7.86 times 0 again...but tack on a zero because we are now working with the "tens" place = 0000 then 7.86 times the 1....now you tack on 2 zeros because we are working with the "hundreds" place = 78600 and add altogether 78600 0000 000 -------- 786.00
johnweldon1993
  • johnweldon1993
I hope that made SOME sense lol
anonymous
  • anonymous
Right, yeah that's what I'd thought just not the right words lol! Thanks so much again your the BOMB!! Thanks for bearing with me, I know I'm not the quickest at numbers :)
johnweldon1993
  • johnweldon1993
Don't worry about it! And you are very welcome :)

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