Respuesta :
Draw a number line. The tickmarks will be spaced 1 unit apart. Make sure to go as high as 20.
Mark the location "5" on the number line. Then move 13 spaces to the right until you arrive at 18. This visually represents 5+13 = 18.
Or alternatively, you can start at 13 on the number line. Moving 5 spaces to the right will get you to the same destination of 18. In a sense, it shows that the order doesn't matter and that 5+13 is the same as 13+5. This applies to any two numbers you can think of.
Answer: you draw a number line, then plug your numbers in.
Step-by-step explanation: 5+8 = 13 so you would put 5+8 in between 12 and 14 on the number line.