{"product_id":"1-more-1-less-10-more-10-less-math-mystery-worksheets-grades-1-2-back-to-school","title":"1 More 1 Less 10 More 10 Less | Math Mystery Worksheets | Grades 1–2 | Back to School","description":"\u003cp\u003e\u003cstrong\u003eFifteen school cases put 1 more, 1 less, 10 more and 10 less to work\u003c\/strong\u003e — students complete a number chart for each case, match every answer to a suspect's badge, and cross names off until one is left holding the blame. This no-prep, printable, self-checking Math Mystery keeps 1st and 2nd graders engaged and works perfectly for math centers, morning work, homework, early finishers, substitute\/relief days, indoor recess, spiral review, and test prep.\u003c\/p\u003e\n\n\u003ch3\u003eQuick Details\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSkill:\u003c\/strong\u003e 1 more, 1 less, 10 more, 10 less · \u003cstrong\u003eGrades:\u003c\/strong\u003e 1–2 · \u003cstrong\u003eFormat:\u003c\/strong\u003e 15 mysteries + full answer keys (printable PDF) · \u003cstrong\u003eTheme:\u003c\/strong\u003e Back to school\u003c\/p\u003e\n\n\u003ch3\u003eThe 15 Mysteries\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThe Missing Class Pet\u003c\/strong\u003e — Nibbles the class hamster is gone and his cage is wide open.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Stolen Markers\u003c\/strong\u003e — Every marker in the school has vanished from the supply cupboard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Silent Lunch Bell\u003c\/strong\u003e — The lunch bell never rang and the whole school missed break.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Vanished Trophy\u003c\/strong\u003e — The sports day trophy has gone from the display cabinet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Empty Book Bin\u003c\/strong\u003e — The library returns bin was full last night and is empty now.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Lost Property Box\u003c\/strong\u003e — The whole lost property box has gone from outside the office.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cookie Caper\u003c\/strong\u003e — Two trays of cookies cooled in the kitchen and both vanished.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Deflated Ball\u003c\/strong\u003e — The playground ball has been let down and hidden somewhere.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Muddy Footprints\u003c\/strong\u003e — Muddy footprints lead from the field across the clean hall.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Missing Fire Key\u003c\/strong\u003e — The fire drill key is gone from its hook by the office door.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Swapped Name Tags\u003c\/strong\u003e — Every name tag on the coat pegs has been swapped around.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Missing Microphone\u003c\/strong\u003e — The assembly microphone vanished right before assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Stolen Poster\u003c\/strong\u003e — The winning science fair poster is gone from the board.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Locked Cupboard\u003c\/strong\u003e — The art cupboard has been locked and all the paint is inside.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Missing Album\u003c\/strong\u003e — The school photo album has gone from the office shelf.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Teachers Love It\u003c\/h3\u003e\n\u003cp\u003eZero prep — print and teach. The built-in answer keys make every mystery self-checking, so students get instant feedback and stay motivated. The detective hook pulls in reluctant and struggling learners, and fifteen separate cases make it easy to differentiate or stretch the activity across weeks.\u003c\/p\u003e\n\n\u003ch3\u003eSkills Covered\u003c\/h3\u003e\n\u003cp\u003eFinding 1 more, 1 less, 10 more and 10 less than a given number and completing number charts, plus logical reasoning and deductive elimination as students rule suspects out clue by clue.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003ePrintable one-page mystery worksheets, suspect line-ups, complete answer keys for every mystery, and student instructions — all in one PDF.\u003c\/p\u003e\n\n\u003ch3\u003eBest Used For\u003c\/h3\u003e\n\u003cp\u003eNumber sense and place value practice in math centers, morning work, homework, early finishers, substitute\/relief days, indoor recess, back to school activities, spiral review, and test prep for grades 1–2.\u003c\/p\u003e","brand":"Kiwiland Education","offers":[{"title":"Default Title","offer_id":62170873430386,"sku":"17191551","price":4.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2848\/0626\/files\/1-more-1-less-10-more-10-less-math-mystery-worksheets-grades-1-2.jpg?v=1786354547","url":"https:\/\/kiwilandeducation.com\/products\/1-more-1-less-10-more-10-less-math-mystery-worksheets-grades-1-2-back-to-school","provider":"Kiwiland Education","version":"1.0","type":"link"}