“New math” sucks. Using the strict rule that multiplication/division ALWAYS needs to be done before addition/subtraction will sometimes produces false answers. Not always, but even sometimes is dangerous.

It is better to know the underlying reason for WHY you are multiplying/dividing first, rather than following some rote rule of assumption.

Like ignoring commas in grammar, new math is sold as a way to avoid the parentheses of old math. I call this a lazy or sloppy way of doing math. Like commas in grammar, parentheses in math add clarity, prevent ambiguity, and avoid confusion.

Today, new math often produces a totally different answer than old math. Does anyone really think this is a good idea?

Even smart phone calculators have migrated to “new math,” i.e., statistical rather than standard. Remember to enter the equal sign after adding up the hours you worked BEFORE you multiply by your hourly rate. If you don’t, the calculator will give you an answer less than what you actually earned. Be forewarned.

2+3+3×11=5+3×11=5+33=38

What about 35?

2+3+3*10( 3 shapes originally, but last one has only two)?

57

The Pentagon is in darker shade, assuming that there should be 2 pentagons.

38

“New math” sucks. Using the strict rule that multiplication/division ALWAYS needs to be done before addition/subtraction will sometimes produces false answers. Not always, but even sometimes is dangerous.

It is better to know the underlying reason for WHY you are multiplying/dividing first, rather than following some rote rule of assumption.

Like ignoring commas in grammar, new math is sold as a way to avoid the parentheses of old math. I call this a lazy or sloppy way of doing math. Like commas in grammar, parentheses in math add clarity, prevent ambiguity, and avoid confusion.

Today, new math often produces a totally different answer than old math. Does anyone really think this is a good idea?

Even smart phone calculators have migrated to “new math,” i.e., statistical rather than standard. Remember to enter the equal sign after adding up the hours you worked BEFORE you multiply by your hourly rate. If you don’t, the calculator will give you an answer less than what you actually earned. Be forewarned.