Online animation introduces the concept of decimal addition and subtraction. Math lesson also provides limited sample questions at the end of the topic.*4**4**1*DECIMAL ADDITION AND SUBTRACTION*2*Explains when adding decimals, line up the points one below the other.*4*Explains when subtracting decimals, line up the points one below the other.*4*Explains when subtracting a larger number from a smaller number, first regroup.*4**4**4*Useful for teachers of maths.