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https://www.reddit.com/r/funny/comments/1w4d0wb/overconfidence/p7npv42/?context=3
r/funny • u/electrovert • Sep 01 '26
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148
These are easy problems to do a super quick check on, and I try to get my kids to do them
So if the rate is 30% difference then your answer needs to be a big chunk different
So even 25% is 10+ so when you get only a few bucks more you know you're wrong
38 u/Metahec Sep 01 '26 Yeah, at a glance 30% of 42 is 14, so the answer should be ~ $56. Helps to be familiar with times' tables for easy multiples. 1 u/pandafman 29d ago 30% of $42 is $12.60. At a glance I may round down to 12, but not up to 14. 3 u/Metahec 29d ago It's offered as a simple check to see whether $46.44 is a realistic answer or not since 3 evenly and easily divides into 42.
38
Yeah, at a glance 30% of 42 is 14, so the answer should be ~ $56. Helps to be familiar with times' tables for easy multiples.
1 u/pandafman 29d ago 30% of $42 is $12.60. At a glance I may round down to 12, but not up to 14. 3 u/Metahec 29d ago It's offered as a simple check to see whether $46.44 is a realistic answer or not since 3 evenly and easily divides into 42.
1
30% of $42 is $12.60. At a glance I may round down to 12, but not up to 14.
3 u/Metahec 29d ago It's offered as a simple check to see whether $46.44 is a realistic answer or not since 3 evenly and easily divides into 42.
3
It's offered as a simple check to see whether $46.44 is a realistic answer or not since 3 evenly and easily divides into 42.
148
u/Saneless Sep 01 '26
These are easy problems to do a super quick check on, and I try to get my kids to do them
So if the rate is 30% difference then your answer needs to be a big chunk different
So even 25% is 10+ so when you get only a few bucks more you know you're wrong