Texas Math Models

Try “number line” or “4.5D”

Place-value chart · number disks

625 − 258 = 367 G3–G4

HundredsTensOnes HTO 625258 − 367 filled = have · outline = take away · orange = a borrowed ten start at the right: ones borrow a ten, then tens a hundred

How this one works

How

show 625 with disks; when a place doesn’t have enough, borrow one from the place to its left.

Best when

you’re learning why we borrow.

seen one of these on a test? See it on a real question: TEKS 3.4A, adding and subtracting to 1,000.

The same problem, other ways