ADDING DECIMALS

Adding decimals When adding decimals you line up ur decimal and if you need to you can add a zero to your problem, when having a whole number you keep your decimal on the right and add your zeros if you need to, when you add your numbers it's just like adding a addition problem.

3+(-4)

• The signs are different
• Your going to subtract because then signs are different
• When you subtract your going to keep the sign of the bigger number

4+3

• The signs are the same
• You are going to add because the signs are the same
• When you add your going to keep the sign of all numbers

SUBTRACTING DECIMALS

Subtracting decimals When subtracting decimals you need to line up your decimal you have to add zeros if there is no number in a spot that needs a number a whole number you keep the decimal on the right and add zeros to the places if needed when subtracting you I'll subtract normal

10-(-2)

• The signs are different
• You are going to keep change change (kCC)
• Use the sign of biggest number

10-2

• The signs are the same
• Subtract like a normal subtraction problem