+0

# Standard Form!

+3
178
5
+163

What would the answer be to -

5 x 4 x 103

(I am confused to whether you do 5 x 4 first or you work out the whole answer and then the standard form)

( Either 9 x103 or 2 x 104)

ipopsie  Mar 19, 2017
Sort:

#1
+26366
0

5x4 is not 9 !!!

5x4x103 → 20x103 → 2x104

Alan  Mar 19, 2017
#3
+163
+1

It's 20. I was looking at multiple questions at the same time :D

ipopsie  Mar 19, 2017
#2
+10657
0

5 x 4 x 10^3  = 5 x 4 x 1000      you can do the multiplication in any order , the result will be the same

20,000   or  2 x 10^4

ElectricPavlov  Mar 19, 2017
edited by ElectricPavlov  Mar 19, 2017
#4
0

Use PEMDAS (also known as PEDMAS, they stand for the same thing)

Parentheses

Exponents

Division and Multiplication from left to right

Addition and Subtraction from left to right

Using this,

5*4*10^3

5*4*1000

20*1000

20000

Guest Mar 19, 2017
#5
+52
0

Just saying there is a big probability that I am wrong, but..

5x4=20

10 cubed =1,000

20x 1,000=20,000

P.S soz if it's wrong

Blowyourmind123  Mar 19, 2017

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