First, we add the red and blue parts together. 14+9=23 (parts)14 plus 9 equals 23 (parts)
A designer had 14 red parts and 9 blue parts. He used 5 red parts and 7 blue parts for a robot. How many parts did the designer have left? Solving the Problem First, we add the red and blue parts together
Next, we add the red and blue parts that were used. 5+7=12 (parts)5 plus 7 equals 12 (parts) First, we add the red and blue parts together