Texas Math Models

Standard algorithm

367 + 258 = 625 G3–G4

carried digit sits small, centered above its own column 3-digit + 3-digit4-digit + 4-digit 11 367 258 + 625 11 4367 2258 + 6625 same digits, same carries: one more column

How this one works

How

stack by place value; add each column and carry when you reach 10.

Best when

you want the quickest way.

The same problem, other ways