Question

what is the error in -1.75+-1+4.25+3.75+1+ -4.75+2=18.5

Answer 1

Answer:

they don't respect the signs

Step-by-step explanation:

when you have a problem like the one above you have to put parentheses to the negative numbers either to add or subtract them, there is where the sign rule comes in

Answer 2

Answer:

3.5

Step-by-step explanation:

-1.75+(-1)+4.25+3.75+1+(-4.75)+2

-1.75-1+4.25+3.75+1-4.75+2

-2.75+4.25+3.75+1-4.75+2

1.5+3.75+1-4.75+2

5.25+1-4.75+2

6.25-4.75+2

1.5+2

3.5