Choose one A/B/C card per day and switch if the context is unfamiliar. Every option targets the same day's mathematics. Estimate when asked before finding the exact product. You may draw an array, arrange place cards, point to the print mats, dictate your equations, type, sign, use AAC or use a teacher-scribed strategy. The teacher records your choices and any help. Each setting and amount is invented; no real price, team, business, school or person is represented. The teacher has worked answers. Days 15 and 20 cards below are available only after the new check has been collected.
Day 11 · Estimate, then calculate
- A · Paper grandstand: A drawing has 52 seats in each of 18 rows. Before calculating, use about 50×20 as a benchmark. Find 52×18 exactly and say why it is near, but below, 1,000. Use grid or compensation.
- B · Art-sticker sheets: An invented design uses 73 stickers on each of 14 sheets. Estimate with 70×15, then calculate 73×14. Explain whether an answer near 100 could be plausible.
- C · Game-token cards: Each of 5 fictional cards lists 208 tokens. Estimate with 200×5, then find 208×5. Use place cards or a typed table and explain the extra 8 in each group.
Day 12 · One-digit multiplier, visible place values
- A · Library label model: A paper collection has 235 labels in each of 7 packs. Write
200×7 + 30×7 + 5×7; find the exact total and compare with 200×7. - B · Trail-marker game: The made-up game prints 602 markers per board in 4 boards. Keep the zero tens place visible while finding 602×4; show why 602×4 is bigger than 600×4.
- C · Stage-light diagram: A paper grid labels 481 light dots in each of 6 panels. Use hundreds/tens/ones or an accessible number table to find 481×6 and state a rough check. This does not describe an electrical installation.
Day 13 · Two-digit partial products
- A · Book-card sets: A fictional print plan uses 215 cards in each of 14 sets. Show 215×10 and 215×4 separately, add them, then explain why the tens product has four digits.
- B · Sports-score sheets: A paper example has 76 marks on each of 32 sheets. Show 76×30 and 76×2, combine and check against a nearby rounded product.
- C · Garden-plan squares: A design table draws 142 squares in each of 26 strips. Find 142×20 and 142×6, then total. Tell a reader which partial product is from twenty, not two, strips.
Day 14 · Choose an efficient route
- A · Music-note cards: Each of 9 paper cards contains 396 printed notes. Choose 400×9 minus 4×9 or another method for 396×9. Explain why your answer must be a little below 3,600.
- B · Craft-tab sheets: A mock design has 125 tabs on each of 24 sheets. Choose 125×(20+4), or double 125×12, or another valid route. Check the result against 100×24.
- C · Board-game squares: Each of 19 fictional boards has 318 squares. Choose 318×(20−1) or partial products. Explain why a result near 60,000 would be the wrong scale.
Day 15 · After Check A only
- A · Paper flags: 106 flags on each of 13 drawn pages. Find 106×13 with 10+3 and mark the ten-group product. This card was not the assessment.
- B · Workshop labels: 72 labels on each of 28 fictional sheets. Find 72×28 using 30−2 or 20+8 and compare both routes.
- C · Board-game pieces: 309 pieces in each of 6 printed plans. Show the zero tens place and find 309×6. A teacher checks the separate fresh sample first.
Day 16 · Invented money, exact decision
- A · Print kits: 12 imaginary kits at $34 each, with a stated $420 limit. Estimate, calculate exact total, then tell how much remains. Use a private fictional card, not family spending.
- B · Paper badges: 19 invented badges at $27 each, with a $530 limit. Use compensation or partitioning, then state whether the limit is met and the exact remainder.
- C · Club folders: 11 fictional folders at $42 each, with a $480 limit. Explain why
10×42is a useful start, then find total and amount left.
Day 17 · Product and inverse family
- A · Ticket model: 215 paper tickets per booklet in 9 booklets. Find total, then write a division or multiplication fact that undoes/checks the grouping. Give a rounded check too.
- B · Map-symbol grids: 324 symbols per panel on 7 paper panels. Find the total, an inverse fact and a nearby bound. Do not say a real map has this many features.
- C · Pattern tiles: 507 printed marks per card on 6 cards. Keep the zero tens and find total; explain which division fact would recover marks per card.
Day 18 · A missing group count
- A · Paper tracks: 18 marks per strip make 702 marks. What whole-number strip count belongs in
18×?=702? Check by substituting your count. - B · Art squares:
?×26=832square marks on a fictional plan. Find the number of equal groups and write an inverse or related fact. - C · Library slips:
45×?=1,260slips in an invented arrangement. Find the group count with division, a partial-products thought or trial/refinement; check the exact product.
Day 19 · Two totals plus a real stated constraint
- A · Puzzle-card bundles: Plan 1 makes 30 bundles of 24; Plan 2 makes 45 bundles of 16. A fictional shelf can hold at most 32 bundles. Find both totals and recommend a plan using only this stated fact. Do not claim one costs less.
- B · Craft-paper envelopes: Plan 1 has 40 envelopes of 21; Plan 2 has 30 envelopes of 28. The worktable has room for at most 35 envelopes. Compare totals, then say which arrangement fits.
- C · Story-card stations: Plan 1 has 36 stations of 26 cards; Plan 2 has 24 stations of 39 cards. The invented activity needs at least 30 stations. Calculate both totals and choose by that criterion. Explain why a different criterion could change the choice.
Day 20 · After Check B only
- A · Label strips: 57 marks on each of 19 paper strips. Find 57×19 using a strategy you can explain and a scale check; keep Check B private.
- B · Token trays: 24 tokens on each of 35 drawn trays. Find 24×35 two ways, such as 24×(30+5) and doubling/halving. Explain when the second route is easier.
- C · Poster dots: 108 dots per paper poster across 11 posters. Use 10+1 to find the product; write an inverse statement and a quick benchmark.
Original resource rights: © NeuroForgeIO Pty Ltd 2026, SubjectNest, CC BY 4.0. Credit, link and indicate changes. All 30 contexts are invented.