Free 3rd Grade Math Worksheets (26 Printable PDFs with Answer Keys)
♛ MathKnights™

Free 3rd Grade Math Worksheets

26 printable PDFs, one for each Florida B.E.S.T. skill a 3rd grader can practice on paper. Every sheet has an answer key on page two. No signup, no ads.

By Erika Nagy · mom of two, founder of MathKnights · Updated October 2026

Every sheet below practices one Florida B.E.S.T. 3rd-grade skill. Each is a two-page PDF: 12 questions that start easy and get harder, then the answer key on page two. No signup, no email, no ads.

How to use them: one sheet, about ten minutes, then check it together with the key. If your child misses three or more, the key has a tip for that skill. A missed question is information, not failure.

Multiplication and division

The big skill of 3rd grade. Facts to 12, the properties that make them easier, and story problems that use them.

Multiplication and Division Facts to 12

Multiplication and division facts from 0 to 12.

Florida B.E.S.T. MA.3.NSO.2.4 Printable multiplication chart

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Equal Groups and Related Facts

Equal groups, arrays and related division facts with products to 144.

Florida B.E.S.T. MA.3.NSO.2.2

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Multiplying by Multiples of 10 and 100

Multiply a one-digit number by multiples of 10 and 100, like 6 × 300.

Florida B.E.S.T. MA.3.NSO.2.3

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Properties of Multiplication

Name the commutative and associative properties, break numbers apart with the distributive property, and multiply three numbers.

Florida B.E.S.T. MA.3.AR.1.1 Area model multiplication

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Division as a Missing Factor

Turn a division problem into a missing-factor multiplication problem.

Florida B.E.S.T. MA.3.AR.2.1

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True or False Equations

Decide whether multiplication and division equations are true or false.

Florida B.E.S.T. MA.3.AR.2.2

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Find the Unknown Number

Find the missing number in a multiplication or division equation, in any position.

Florida B.E.S.T. MA.3.AR.2.3

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Multiplication and Division Word Problems

One- and two-step story problems with all four operations, factors up to 12.

Florida B.E.S.T. MA.3.AR.1.2

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Got the sheet? Here’s what it can’t do.

A worksheet tells you that your child missed a problem, not which kind they keep missing. MathKnights notices the pattern and practices exactly that gap.

Try it free

Free plan · no card · Grades 1–5

Place value, adding and subtracting

Numbers up to 10,000: reading them, breaking them apart, comparing, rounding, and adding and subtracting with regrouping.

Reading and Writing Numbers to 10,000

Read and write numbers to 10,000 in standard, expanded and word form.

Florida B.E.S.T. MA.3.NSO.1.1 Printable place value chart

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Composing and Decomposing Numbers

Build and break apart four-digit numbers with thousands, hundreds, tens and ones.

Florida B.E.S.T. MA.3.NSO.1.2 Printable place value chart

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Comparing and Ordering Numbers to 10,000

Compare numbers to 10,000 with <, > and =, and put them in order.

Florida B.E.S.T. MA.3.NSO.1.3

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Rounding to the Nearest 10 and 100

Round numbers from 0 to 1,000 to the nearest 10 or 100.

Florida B.E.S.T. MA.3.NSO.1.4

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Adding and Subtracting Multi-Digit Numbers

Add and subtract three- and four-digit numbers with regrouping.

Florida B.E.S.T. MA.3.NSO.2.1

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Patterns, even and odd, and multiples

Short sheets that build number sense alongside the times tables.

Even and Odd Numbers

Tell whether numbers up to 1,000 are even or odd.

Florida B.E.S.T. MA.3.AR.3.1

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Multiples

Decide whether a number up to 144 is a multiple of a one-digit number.

Florida B.E.S.T. MA.3.AR.3.2

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Number Patterns

Continue number patterns and find the rule.

Florida B.E.S.T. MA.3.AR.3.3

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Fractions

Fractions are new in 3rd grade. These sheets follow the order they are taught: unit fractions first, then building, naming, comparing and equivalent fractions.

Unit Fractions

Unit fractions: one equal part of a whole, with denominators 2 to 12.

Florida B.E.S.T. MA.3.FR.1.1

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Building Fractions from Unit Fractions

Build fractions by adding unit fractions, including fractions greater than one.

Florida B.E.S.T. MA.3.FR.1.2

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Reading and Writing Fractions

Read and write fractions in standard, numeral-word and word form.

Florida B.E.S.T. MA.3.FR.1.3

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Comparing Fractions

Compare and order fractions with the same numerator or the same denominator.

Florida B.E.S.T. MA.3.FR.2.1

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Equivalent Fractions

Identify fractions that name the same amount.

Florida B.E.S.T. MA.3.FR.2.2 Equivalent fractions, explained

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Measurement and time

Story problems with real units, and elapsed time.

Measurement Word Problems

Story problems with lengths, weights, temperatures and liquid volumes, answered with units.

Florida B.E.S.T. MA.3.M.1.2

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Elapsed Time

How much time passed, and what time it will be, without crossing a.m. and p.m.

Florida B.E.S.T. MA.3.M.2.2

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Area and perimeter

Rectangles first, then shapes made of two rectangles.

Area of Rectangles

Area of rectangles with whole-number sides, answered in square units.

Florida B.E.S.T. MA.3.GR.2.2

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Perimeter and Area

Perimeter and area of rectangles in real-world problems.

Florida B.E.S.T. MA.3.GR.2.3

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Area of Composite Figures

Area of shapes made of two rectangles that do not overlap.

Florida B.E.S.T. MA.3.GR.2.4

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Skills that need pictures

Some 3rd-grade skills are about seeing and handling things, so a text worksheet isn’t the right tool. These are practiced in MathKnights with on-screen graphs, clocks, measuring tools and shapes:

Worksheets are the warm-up

MathKnights adapts to your child: the next question gets easier or harder based on their answers, and you get a progress report showing what they’ve mastered. Free to start, no card needed.

Try MathKnights free

Worksheets © Nexplay AI LLC, licensed under CC BY-NC-ND 4.0: free to download, print and share with attribution.

Looking for another grade? See free math worksheets for grades 1–5.