Fluently Add and Subtract Multi-Digit Decimals

Fluently Add and Subtract Multi-Digit Decimals
Introduction

Adding and subtracting multi-digit decimals is an important skill used in everyday life. It helps when working with money, measurements, distances, and dat...

Sofia and Ethan are decorating their science fair display board with colorful ribbon borders.

Sofia has a ribbon that is 25.23 meters long, and Ethan has one that is 20.1 meters long.

To check whether they have enough ribbon for the display border, they add the two measurements.

First, they line up the decimal points so each pl...