Question

What is the difference between 450 and 4.5 in decimals? give proper answer with al rough work​

Answer 1

Given : 450 and 4.5

or 4.50 and 4.5

To Find : difference between them

Solution:

difference between 450 and 4.5

= 450 - 4.5  

= 445.5

Difference between

4.50 and 4.5

4.50 and 4.5 are mathematically Equivalent as adding or Deleting ) on right sides of Decimal does not change Value

But there is significance of Zeroes in measurements as it shows accuracy Level

for example

 4.45 ≤  4.5  < 4.55

while 4.50 is

4.495 ≤  4.5  < 4.505

Hence there is significant change in level of accuracy because of additional Zero

4.5  and 4.5000000000000 have same value

but 4.5000000000000 has very high level of accuracy of measurement

while 4.5 has low accuracy of measurement

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