Lin made a train from some cubes. Then she added 37 more cubes. Now her train is 63 cm cubes long. How many cubes long was her train at first?
26 cubes
Tyler's train was 63 cubes long. He broke off some cubes. Now his train is 37 cubes long. Does this number line show how many cubes Tyler broke off the train? Explain your thinking
Yes because the number line starts at 63, it goes to the left showing subtracting or taking away, and it ends at 37.
Jada's train was 37 cubes long. Then she added some more cubes. Now her train is 63 cubes long. How many cubes did she add? She your thinking on the number line.
26 cube