Texas Math Models

Arrow way (arrow notation)

367 + 258 = 625 G3 · from G2

367 +200 567 +50 617 +3 620 +5 625 split +8 into +3 (to a "friendly" 620) then +5

How this one works

How

write each jump as an arrow; no drawing.

Best when

you want the number line, but faster.

The same problem, other ways