New Jersey NJSLA Grade 4 Math Free Worksheets: Free Printable Worksheets Covering Every Skill

Every parent of a fourth grader notices it eventually: the math homework takes longer than it used to. That is not a problem — it is the year working as designed. Fourth grade is when numbers grow into the hundred-thousands and have to be read, rounded, and compared with ease. Multiplication becomes a multi-step procedure instead of a single fact. Division begins to leave remainders, and a remainder is something a child has to think about and explain, not just jot down. The questions are longer because the thinking inside them has grown.

Fractions become real numbers this year, not just shaded shapes — equivalence, comparison, adding and subtracting with like denominators, mixed numbers, and multiplying a fraction by a whole number. Decimals to the hundredths show up for the first time. So do angles, area and perimeter, line plots, and multi-step word problems that reward a child who plans before computing. It is a foundational year, and it builds best when each skill gets its own turn.

That is the idea behind these worksheets. Whether your child is in Newark, Jersey City, Paterson, or Trenton, each PDF takes a single skill and gives it enough focused practice to take hold.

What’s on this page

This page holds 43 single-skill PDFs, each aligned to the New Jersey Mathematics Standards at Grade 4. Every file stays on one skill, so a student working on multiplicative comparison is not also fielding questions about angle measurement, and a student on adding fractions is not pulled away into rounding large numbers.

Each PDF begins with a one-page Quick Review that explains the skill in plain language and walks through a worked example step by step. Then come 20 practice problems that climb gradually from easy to harder, followed by 4 word problems that set the skill in a real-world context. The closing page is a student-facing answer key — short, friendly explanations a fourth grader can read alone and genuinely learn from.

Place Value & Multi-Digit Numbers

• Understanding Place Value Relationships — [4.NBT.A.1] each place is ten times the one to its right
• Reading and Writing Multi-Digit Numbers — [4.NBT.A.2] standard form, word form, and expanded form
• Comparing and Ordering Multi-Digit Numbers — [4.NBT.A.2] use place value and the symbols >, <, and =
• Rounding Multi-Digit Numbers — [4.NBT.A.3] round to any place from tens to hundred-thousands

Multi-Digit Arithmetic

• Adding Multi-Digit Whole Numbers — [4.NBT.B.4] the standard addition algorithm, with regrouping
• Subtracting Multi-Digit Whole Numbers — [4.NBT.B.4] the standard subtraction algorithm, including across zeros
• Multiplying by a One-Digit Number — [4.NBT.B.5] multiply up to four digits by a single digit
• Multiplying Two Two-Digit Numbers — [4.NBT.B.5] the area model and the standard algorithm side by side
• Dividing with Remainders — [4.NBT.B.6] divide and name the leftover as a remainder
• Finding Factors and Multiples — [4.OA.B.4] list every factor of a number and its first multiples
• Prime and Composite Numbers — [4.OA.B.4] exactly two factors means prime; more means composite

Operations & Problem Solving

• Multiplicative Comparisons — [4.OA.A.1] read ‘4 times as many’ as a multiplication statement
• Multiplicative Comparison Word Problems — [4.OA.A.2] solve ‘times as many’ stories with multiplication or division
• Multi-Step Word Problems — [4.OA.A.3] two or more operations in one real-world problem
• Interpreting Remainders — [4.OA.A.3] decide what the leftover means — round up, drop it, or use it
• Number and Shape Patterns — [4.OA.C.5] follow a rule and find the next terms in a pattern

Fractions

• Equivalent Fractions — [4.NF.A.1] the same amount written with different numbers
• Comparing Fractions — [4.NF.A.2] compare fractions with unlike denominators using benchmarks
• Adding Fractions with Like Denominators — [4.NF.B.3a] add the numerators, keep the denominator
• Subtracting Fractions with Like Denominators — [4.NF.B.3a] subtract the numerators, keep the denominator
• Decomposing Fractions — [4.NF.B.3b] break a fraction into a sum of unit fractions
• Adding and Subtracting Mixed Numbers — [4.NF.B.3c] work with the whole and fraction parts, including regrouping
• Multiplying a Fraction by a Whole Number — [4.NF.B.4b] repeated addition of a fraction, written as multiplication
• Fraction Word Problems — [4.NF.B.3d] real-world stories that call for adding or subtracting fractions

Decimals

• Fractions with Denominators 10 and 100 — [4.NF.C.5] rename tenths as hundredths and add the two
• Decimal Notation for Fractions — [4.NF.C.6] write tenths and hundredths as decimals, and back
• Comparing Decimals to Hundredths — [4.NF.C.7] line up the place values and compare with >, <, =
• Adding Decimal Fractions — [4.NF.C.5] add decimals to the hundredths place

Measurement & Data

• Converting Measurement Units — [4.MD.A.1] change from a larger unit to a smaller one
• Measurement Word Problems — [4.MD.A.2] length, weight, volume, and time in real situations
• Area of Rectangles — [4.MD.A.3] length times width — the space inside a rectangle
• Perimeter of Rectangles — [4.MD.A.3] the distance all the way around a rectangle
• Area and Perimeter Word Problems — [4.MD.A.3] decide whether a problem needs area or perimeter
• Line Plots with Fractions — [4.MD.B.4] read and use a line plot of fraction measurements

Angles

• Angles as Fractions of a Circle — [4.MD.C.5] a full turn is 360 degrees — find a fraction of it
• Measuring Angles with a Protractor — [4.MD.C.6] name angles acute, right, or obtuse by their measure
• Drawing Angles with Given Measures — [4.MD.C.6] know what a given degree measure should look like
• Adding and Subtracting Angles — [4.MD.C.7] an angle split into parts — find the missing part

Geometry

• Points, Lines, Rays, and Angles — [4.G.A.1] the building blocks of geometry and how to tell them apart
• Parallel and Perpendicular Lines — [4.G.A.1] lines that never meet, and lines that cross at a square corner
• Classifying Triangles — [4.G.A.2] sort triangles by their angles and their sides
• Classifying Quadrilaterals — [4.G.A.2] name four-sided shapes by their sides and angles
• Lines of Symmetry — [4.G.A.3] find the lines that fold a shape onto itself

How to use these worksheets at home

Keep the sessions short and let the steadiness carry the work. Fifteen minutes is plenty for a nine- or ten-year-old, and a calm fifteen minutes beats a tense forty-five every time. Pick one PDF, sit close by, and let your child do the work while you stay on hand for the stuck moments.

The habit that pays off most is pairing skills that lean on each other. Run “Adding Multi-Digit Whole Numbers” one day and “Subtracting Multi-Digit Whole Numbers” the next, and the second feels familiar rather than brand new. The same goes for “Equivalent Fractions” followed by “Comparing Fractions,” or “Area of Rectangles” right before “Perimeter of Rectangles.” When skills come in connected pairs, the connection itself does some of the teaching.

Save the answer key for after the work is finished, then go through it together. In a home in Paterson or a classroom in Trenton, that review step is where the learning truly lands — not in getting every problem right the first time, but in seeing clearly why a method works. Have your child explain one problem back to you in their own words; that small act is what turns a borrowed method into one they own.

It also helps to treat a wrong answer as useful information rather than a failure. If your fourth grader keeps stumbling in the same place — regrouping across zeros, lining up partial products, finding a common denominator — that is precisely the skill worth slowing down on. Because each PDF stays on one skill, you are never re-teaching an entire unit; you are repairing one specific thing and then moving forward.

A note about NJSLA at Grade 4

New Jersey fourth graders take the NJSLA — the New Jersey Student Learning Assessment — in Mathematics in the spring. It is built on the New Jersey Mathematics Standards, which are aligned to the Common Core, so the skills practiced on these worksheets and the skills measured on the test come from the same source.

The Grade 4 NJSLA asks students to do more than recall facts. It expects them to round and compare large numbers, carry out multi-digit multiplication and division, reason about factors and multiples, compare and combine fractions, work with decimals to the hundredths, and solve multi-step word problems where they have to choose the operation themselves. It also asks students to explain and apply their thinking, not just produce an answer. Because each PDF here targets a single standard, you can use the list as a checklist: spot the shaky skill, work just that one, and leave the rest alone.

A short closing

Fourth-grade math grows fast, but it grows in order, each skill leaning on the one before it. Bookmark this page, print a single PDF tonight, and let your child start somewhere small. New Jersey kids do hard things well when the next step is clear — and a worksheet on the kitchen table is about as clear as a next step gets.

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