Using the standard written method to add thousands. All questions should be answered in this way. Take particular care that the units are lined up when adding these totals together.

When adding using decimals it is very important that the decimal points should line up under each other. If the sum also involves whole numbers it is a good idea to put a decimal point after the whole number followed by a zero.

Addition of very large numbers up to millions.

Missing digits within standard method of addition.