Question

What do you need to do to add and subtract decimals?

Answer 1

Answer:

Write down the numbers, one under the other, with the decimal points lined up

Put in zeros so the numbers have the same length

Then add using column addition, remembering to put the decimal point in the answer

Step-by-step explanation:

Answer 2

Line up decimals and add/subtract no different then when you’re adding and subtracting normal numbers