Texas Math Models

Open number line

367 + 258 = 625 G3–G4

367567617620625 +200+50+3+5 start at 367 · jump 258 in friendly chunks · land on 625 200+50+3+5=258

How this one works

How

start at 367 and jump in friendly chunks to 625.

Best when

you like adding in your head.

The same problem, other ways