Respuesta :
Step-by-step explanation:When asked to add or subtract decimals, the most important step is to line up the decimal points. Step 1: Line up the decimal points so that similar place values are lined up. In other words, the tens place in both numbers should be lined up, the ones place in both numbers should be lined up.
Answer:
it is important becasue if you put a number in the wrong place value set it changes the whole set of number for example if a 3 is in a tenths place and you put it in the hundredths place then the number is not the right one.
Step-by-step explanation:
