Texas Math Models

Try “number line” or “4.5D”

Expanded form

34,502 G3–4

pull each digit out at what it is actually worth, then add34,50230,000 + 4,000+ 500 + 20 tens is worth 0, so no tens part is written34,502.7630,000 + 4,000 + 500 + 2+ 0.7 + 0.06the places past the point add on the same wayadd the parts back up and you must land on the number you started with

How this one works

How

write what each digit is worth, then add those values together.

Best when

you want to prove the digits add back up.

seen one of these on a test? See it on a real question: TEKS 4.2B, what each digit is worth.

The same problem, other ways