Is 0.117 less than 0.5?

3 Answers
Feb 22, 2018

Answer:

Yes.

Explanation:

The easiest thing to do is to look at both numbers to #1 d.p#
#0.117 = 0.1# to #1d.p#
#0.5# is already is #1d.p#

1 is less than 5

#therefore 0.1 < 0.5#

Feb 22, 2018

Answer:

#0.117 < 0.500#

Explanation:

If you write the numbers with the same number of decimal places it is easier to see the relationship between them.

Compare #0.117 and 0.500#

Clearly #117 < 500#

Students tend to forget that #0.5 = 0.50 = 0.500#

You are not comparing #117# with #5#

Looking at just the first decimal place would have been enough.

#0.1 < 0.5#

#1/10 < 5/10#

#1<5#

Feb 23, 2018

Answer:

This is a sort of trick showing how you can 'play' with numbers to give you what you whant.

Explanation:

Using the following principle

#1/4 = (1/4xx1)-=(1/4xx2/2)=2/8 larr" All the same value"#

If #0.117# is less than #0.5# then #0.117/0.5# will be less than 1

#(0.117/0.5xx1) -=(0.117/0.5xx100/100) = 117/500<1#

As #117# is less than #500# then #0.117# is less than #0.5#

Notice that 'Ez as pi' has used the same approach but with different numbers.