A lunch check is $27.95. How do you estimate a 15% tip?

2 Answers
Nov 19, 2016

Answer:

4 or 5 dollars depending on the service

Explanation:

#10%of 30 =3# so 15%=4.5
When estimating round off numbers to 1 significant figures so calculations are easy!!

Nov 19, 2016

Answer:

As an estimate, either #$4.20 " or " $4.50# would be close to 15% as a tip.

Explanation:

#10%# is pretty simple to calculate because it just involves moving the comm one place to the left.

#5%# is half of #10%#

#$27.95# is close to #$28#, and for an estimate, close to #$30#

#10%# of #$28 = $2.80" and "10%# of #$30 = 3#
#5% " of " $28 = $1.40" and "5% " of "$30 = $1.50#

#15% " of " $28 = $4.20" and " 15% " of " $30 = $4.50#

As an estimate, either #$4.20 " or " $4.50# would be close to 15% as a tip.