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the 16th century, specifically 1544.

Q: What century were plus and minus signs in math first used?

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1544

plus and minus signs were invented

In math decrease means minus and increase means plus

238 minus 92 is 146. Simple math.

Thirty seven minus five is thirty two. Learning primary math functions such as addition and subtraction will make learning higher levels of math easier. Math can be a lot of fun.

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1544

plus and minus signs were invented

In the year of 1544.

he established the use of of plus,minus signs,brackets,and braces.

minus signs 12345 678910

A plus with a minus under it means "plus or minus" in math.

In math decrease means minus and increase means plus

well unless its some super-hard math I've never heard of, you change the two minus signs next to each other in to plus signs and go from there. 5+5+6=16 you know, you should be able to figure that out! - + - = + sorry that looks confusing. a minus plus a minus equals a plus! hope this helps!!

It makes a -2 from the answer you get in the end.

The math figure of 30.00 minus 14.53 is 15.47.

red is minus in math

2009 minus 1957 is 52. This math problem was pretty easy. All you do is use mental math.