Add Hundredths and Thousandths less than 1: Horizontal Addition Worksheet

To ensure that each decimal has the same number of digits while adding decimals, students align the decimal points and insert additional zeros to the right of the number. Students then add digits at each place to find the sum. In each problem, the numbers are laid out in the horizontal format. Students should try to use different strategies involving composing and decomposing numbers to solve these problems. This will help them develop flexibility and fluency.