Question

The expression below shows a number in

expanded form. What is the standard form of
the number?
(2 x 10) + (3 x 1/10+ (9 X 1/100) + (7 X 1/1,000)

Answer 1

20.397

Explanation:

The expression below shows a number in expanded form:

`(2* 10) + \left(3*  (1)/(10)\right)+ \left(9 * (1)/(100)\right) +\left (7 * (1)/(1,000)\right)`

This expanded form tells you that the number has

• 
  `2` at tens place;
• 
  `3` at tenths place;
• 
  `9` at hundredths place;
• 
  `7` at thousandths place.

Hence, this number is
`20.397`