Expanded Form Match Task Box

About this resource

EVERYTHING INSIDE — 22 pages, 148 type-in fields (verified: pypdf field count on the shipped PDF)

• 18 matching cards across 3 levels (6 cards each): a three-digit numeral target tile ("723") over a row of expanded-form choice tiles ("700 + 20 + 3", "700 + 30 + 2", "200 + 70 + 3", "700 + 20 + 30"), and the child marks the one tile that actually adds up to the target number
• Every card twice: accent-colored tiles for a laminated classroom box and black-and-white outline tiles for the photocopier — plain Nunito text, no picture library either way
• An expanded form reference page (color and ink-saver): one large worked example ("532 = 500 + 30 + 2") plus 16 smaller ones, and a note on checking a tile by adding its own three parts
• An answer key listing every card by level, the numeral, and the value each tile on the card actually adds up to, with the right one in bold
• A task box data sheet (16 rows: date, level, cards used, cards correct, cards given, percent, help given, initials)
• A percent graph, 14 sessions across, with a level box under each session
• A filled example — an invented student, 8 sessions, every percent re-counted from its own row
• A family practice page with six of the same cards
• A phrase bank: spoken lines for running the box and written starters for the note afterward, in 6 groups
• Start Here, a contents page with page thumbnails, and a "what's next" back page

A task box built around checking whether a written-out expanded form really adds up to a three-digit number, pairing with the collection's existing two-digit expanded-form box and its base-ten-block hundreds/tens/ones box. Nothing on a card says its level except a dot code in the corner, so a mixed-up box sorts itself back together.

Three Levels, Each Testing A Different Place-Value Mistake

• Level 1 — 6 cards. Numbers 123-312, two choices, and the wrong one is a completely different number's own expansion, wrong in all three digit places and far enough away that it is not a place-value mix-up at all — the first cards are nearly impossible to get wrong.
• Level 2 — 6 cards. Numbers 423-612, three choices: the right one, a digit-swap tile that scales the ones digit by ten and writes the tens digit bare in its place (456 shown as 400 + 60 + 5 instead of 400 + 50 + 6), and a nearby number's own real expansion.
• Level 3 — 6 cards, numbers 723-912. Four choices: the digit-swap tile, a tile that trades the hundreds and tens digits' places (723 shown as 200 + 70 + 3 instead of 700 + 20 + 3), and a tile with an extra zero tacked onto the ones part (700 + 20 + 30 instead of 700 + 20 + 3), alongside the right one.

NO PICTURES, ON PURPOSE — every tile on every page is plain Nunito text in a bordered box, styled the same way in both the color set and the ink-saver set. There is no picture library to run out of and no image to misread; the only thing a child checks is whether three numbers really add up to a fourth.

What This Is, And What It Is Not

It is a fillable PDF: type into the data sheet, the graph header, the family page and the example-style notes, or print and use a pen. The card pages and reference page print on cardstock or plain paper and cut along dashed lines. It works offline with no account or subscription. It is NOT an editable online slideshow or word-processor document, and it is not a test of anything.

It carries no prompt hierarchy, fading schedule or mastery rule, and it does not decide what a percent means for a student or when to move up a level. The goal line and the criterion field are blanks for your district's own wording and your team's own number. It measures one thing: cards with the correctly expanded form marked.

Who This Is For

Special education teachers and paraprofessionals running independent work stations or task box rotations with students working on three-digit place value, case managers who need that practice to show up as data, and the families who get the practice page sent home.

More In The Collection

This is one set in the Task Box Collection; more sort, counting and number-sense boxes are being added to the collection regularly, all on the same cards-plus-data shape.