Home/Grade 3 Math: Number & Operations in Base Ten
Collection · 74 resources

Grade 3 Math: Number & Operations in Base Ten

3rd grade math worksheets and activities for number & operations in base ten (Common Core 3.NBT): printable mystery worksheets, CSI cases and digital escape rooms.

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Showing 49–72 of 74
Christmas rounding to the nearest 10 and 100 worksheets 3rd gradeRounding to the Nearest 10 and 100Mystery Detective Worksheets · Grades 2–4
$4
New year 3-digit addition with regrouping worksheets grade 33-Digit Addition with RegroupingMystery Detective Worksheets · Grades 2–5
$4
Christmas 3-digit addition with regrouping worksheets 2nd 3rd grade3-Digit Addition with RegroupingMystery Detective Worksheets · Grades 2–5
$4
Easter egg hunt mystery detective addition subtraction regroupingEaster Addition & Subtraction CSI Mystery WorksheetsGrades 2–5 · The Easter Egg Hunt
$4.50
3-digit subtraction across zeros worksheets 3rd grade3-Digit Subtraction Across ZerosMystery Detective Worksheets · Grades 2–6
$4
St patricks day 3-digit subtraction with regrouping worksheets3-Digit Subtraction with RegroupingMystery Detective Worksheets · Grades 2–4
$4
Christmas 3-digit subtraction with regrouping worksheets 2nd 3rd grade3-Digit Subtraction with RegroupingMystery Detective Worksheets · Grades 2–4
$4
My teacher is an alien CSI mystery detective back-to-school grades 3-4Back to School Addition & Subtraction CSI Mystery WorksheetsGrades 2–5 · My Teacher is an Alien
$4.50
St patricks day hidden pot of gold CSI mystery detective grades 2-5St. Patrick's Day Addition & Subtraction CSI Mystery WorksheetsGrades 2–5 · The Hidden Pot of Gold
$4.50
Jungle juice fever mystery detective addition subtraction grades 2-3Addition & Subtraction CSI Mystery WorksheetsGrades 2–3 · Jungle Juice Fever
$4.50
Haunted jack o lantern CSI mystery detective halloween grades 2-4Addition & Subtraction CSI Mystery WorksheetsGrades 3–5 · Haunted Halloween
$4.50
Presidents day CSI mystery detective february grades 3-5Presidents Day CSI Mystery WorksheetsGrades 2–5 · The Missing Hat
$4.50
Alien invasion CSI mystery detective addition subtraction grades 2-3Addition & Subtraction CSI Mystery WorksheetsGrades 2–3 · Alien Invasion
$4.50
Groundhog day math 1Groundhog Day Addition & Subtraction CSI Mystery WorksheetsGrades 2–5 · The Missing Groundhog
$4.50
The missing turkey thanksgiving mystery detective grades 3-5Thanksgiving CSI Mystery WorksheetsGrades 2–5 · The Missing Turkey
$4.50
Back-to-school CSI mystery detective grades 2-3 first weekAddition & Subtraction CSI Mystery WorksheetsGrades 2–5 · The Missing Stationery
$4.50
Spring mystery detective 1Spring Addition & Subtraction CSI Mystery WorksheetsGrades 2–5 · The Missing Flowers
$4.50
Halloween 3-digit addition and subtraction worksheets 2nd 3rd grade3-Digit Addition & SubtractionMystery Detective Worksheets · Grades 2–5
$4
Halloween place value worksheets and rounding practice for 3rd and 4th grade math, ten no prep printable detective cases set at a Halloween festivalHalloween Place Value and RoundingMystery Detective Worksheets · Grades 3–5
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Multiplying by multiples of 10 worksheets for 3rd grade, ten no prep candy factory math casesMultiplying by Multiples of 10Mystery Detective · Grades 3–5
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Rounding whole numbers worksheets for 4th grade math, ten no prep video game detective cases where students round to the nearest thousand, ten thousand and hundred thousandRounding Whole NumbersMystery Detective Worksheets · Grades 3–6
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3 digit addition and subtraction with regrouping summer beach practice3-Digit Addition & SubtractionMystery Detective · Grades 2–5
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Back to school 3 digit addition with regrouping worksheets grade 3Back to School 3-Digit AdditionMystery Detective Worksheets · Grades 2–5
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3 digit addition with regrouping camp theme detective practice3-Digit Addition & SubtractionMystery Detective · Grades 2–5
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