Written addition

More practice with adding two 4-digit numbers.

The standard written method for addition. Check answers by adding the columns in reverse order.

Adding decimals using the standard written method and squared paper.

The standard written method for addition of decimals. If using squared paper always put the decimal point on the vertical line, not in a square.

The standard written method for adding two 4-digit numbers.

More written addition of two 4-digit numbers.

Using a place value chart and counters to show the written addition method with no exchange.

Using squared paper to help with adding two 4-digit numbers.