the problem is 45.37-45.37*12-10. You use pemdas to see what to do first. pemdas means parentheses, exponents (example: 5² or 5 times 5), multiplication, division, addition, subtracting. you do this in order. So, first, using pemdas, it says that multiplication is first. so you do -45.37 times 12 and get -544.44. after doing that you get 45.37-544.44-10. pemdas says addition is next, but you do the problem in order because multiplication and division go together and subtration and addition go together. it won't matter what you do first. 45.37-544.44 is -499.07. and subtract 10 from that and get -509.07
