Texas Math Models

Try “number line” or “4.5D”

Number line · jump to the whole

3/5 + 4/5 = 1 2/5 Grade 4

start at three fifths, and stop at the whole on the way +25+25 012 35125 jump to the WHOLE first, then the rest 45breaks into25+25 35+45=75=125

How this one works

How

start at the first fraction and jump; but stop at the whole number on the way.

Best when

you like counting up in your head.

The same problem, other ways