Adding and subtracting on number line
cc-2nd-add-subtract-1000--cc-2nd-add-ones-tens-hundreds--exercise-for-numberline-addition-and-subtraction
Add and subtract within 1,000
Visually adding within 1,000
Sal adds and subtracts numbers like 585 and 368 using a number line. Numbers used in these problems are less than 1000.