NJSLA 4th grade math is the inflection year for fractions — equivalent fractions, decimal-fraction connections, and line plots with fraction measurements all hit here.
Grade 4 is where fractions go from 'introduction' to 'heavy weight.' The 2023 NJSLS-M expects your child to handle equivalent fractions, comparison via benchmark fractions like 1/2, addition and subtraction of fractions with like denominators, and multiplication of a fraction by a whole number. Decimals join the picture for the first time — denominators 10 and 100, decimal notation (0.62 = 62/100), and comparing decimals to hundredths. Multi-digit multiplication and long division (4-digit divided by 1-digit) become central.
Forty-seven percent of New Jersey 4th-graders scored Met or Exceeded Expectations in 2025 — up 2 points from 45% in 2024. The improvement is modest but real, and it's driven mostly by stronger early fraction instruction post-pandemic. The cohort headwind: this is the group that lost kindergarten and first grade to remote learning during the foundational counting and place-value years.
NJSLA uses 5 performance levels on a 650-850 scaled score: Level 1 'Did Not Yet Meet' (650-699), Level 2 'Partially Met' (700-724), Level 3 'Approached' (725-749), Level 4 'Met Expectations' (750-789, the proficiency target), Level 5 'Exceeded' (790-850). Level 4 is proficient — Level 3 is NOT. New Jersey is one of the only states using 5 levels instead of 4.
Spring 2026 launched NJSLA-Adaptive (NJSLA-A) for grades 3-8 ELA and Math. The test now adapts in real time: when your child answers correctly, the next question gets harder; when they struggle, it gets easier. Two students in the same classroom see different questions. Final scaled scores are designed to be comparable. ELA Writing is NOT adaptive (single extended task). Science (NJSLA-S) is NOT adaptive — it stays fixed-form.
Up 2 points from 45% in 2024.
Source: NJ DOE Statewide Assessment Results (Spring 2025), via NJ Education Report (njedreport.com)
Real NJSLA format. Aligned to 2023 NJSLS-Mathematics. Detailed explanations on every answer.
A bakery on the Jersey Shore sells 36 boxes of saltwater taffy each day. How many boxes does it sell in 14 days?
New Jersey Grade 4 Math has six domains under the 2023 NJSLS-M. Fractions and decimals together carry the heaviest weight at this grade — the 2023 standards introduce decimals at hundredths and the line-plot fraction work in the Data Literacy domain. Calculators are not yet allowed.
| Reporting Category | What's Tested |
|---|---|
| Operations & Algebraic Thinking (4.OA) | Multi-step word problems, factor pairs, prime and composite numbers, generating and analyzing patterns. |
| Number & Operations in Base Ten (4.NBT) | Multi-digit multiplication (up to 4-digit × 1-digit), long division (4-digit ÷ 1-digit), place value to 1,000,000. |
| Number & Operations — Fractions (4.NF) | Equivalent fractions, benchmark comparisons, addition and subtraction with like denominators, fraction × whole number, decimal notation for tenths and hundredths. |
| Measurement (4.MD, standalone) | Conversions within a measurement system, perimeter and area of rectangles, angle measurement in degrees. |
| Data Literacy (4.MD, standalone) | Line plots with fraction measurements (½, ¼, ⅛) appear here for the first time — a 2023 NJSLS-M shift. |
| Geometry (4.G) | Lines, angles, lines of symmetry, classifying two-dimensional figures. |
Decimal-fraction equivalence is the highest-leverage Grade 4 NJSLA Math skill. 0.7 = 7/10, 0.62 = 62/100. Practice converting back and forth out loud — at the grocery store ('what's 0.5 pounds as a fraction?'), at the gas pump ('what fraction of a gallon is 0.25?'). This single bridge unlocks Grade 5 decimal operations.
Drill multi-digit multiplication with the partial-products method, not just the standard algorithm. 47 × 36 = (40 × 30) + (40 × 6) + (7 × 30) + (7 × 6). Even when your child knows the standard algorithm, NJSLA reasoning items often ask 'show your work in another way' — partial products is that other way.
Practice fraction word problems where the answer is greater than 1. 'Sarah ate 5/4 of her pizza' confuses kids who only see fractions as 'less than one whole.' The 2023 NJSLS-M is explicit that fractions can be greater than 1, and the test reflects this.
Don't skip line plots. The 2023 NJSLS Data Literacy domain treats line plots with fraction measurements (½, ¼, ⅛ inches) as their own skill. If your child's homework doesn't include line plots, supplement — older NJSLA practice materials may not align to this 2023 standards shift.
Show your work, even on multiple-choice items. Adaptive testing means harder questions follow correct answers — and the harder a Grade 4 math question, the more likely your child needs scratch-paper work to avoid arithmetic mistakes. Practice solving on scratch paper before clicking an answer, even when the option list looks easy.
Six domains under the 2023 NJSLS-M: Operations & Algebraic Thinking (multi-step word problems, factor pairs), Number & Operations in Base Ten (multi-digit multiplication, long division), Number & Operations — Fractions (equivalence, benchmark comparison, addition/subtraction with like denominators, decimal notation), Measurement, Data Literacy (line plots with fractions are new), and Geometry.
Yes. The 2023 NJSLS-M introduces decimals at Grade 4 for denominators 10 and 100. Your child needs to read and write 0.62 as 62/100, compare decimals to hundredths using place value, and understand that 0.6 = 0.60. Decimal addition and subtraction is technically a Grade 5 skill, but Grade 4 builds the notation and comparison foundation.
Three focus areas. First, equivalent fractions — practice generating 5 equivalents for 2/3 (4/6, 6/9, 8/12, 10/15, 12/18) until it's automatic. Second, benchmark comparisons — is 5/8 closer to 0, 1/2, or 1? (Answer: 1/2.) Third, the decimal-fraction bridge: 0.7 is the same as 7/10, and that's the same point on a number line. Mastering this bridge in Grade 4 is the foundation for Grade 5 decimal operations.
Fractions. Specifically, fraction operations: 1/3 + 1/3 (like denominators), 3 × 1/4 (fraction times whole number), and the decimal-fraction connection (0.6 vs 0.06). These items are where Grade 4 NJSLA proficiency rises and falls, and the 2023 NJSLS-M weights them heavily. If your child is shaky on fraction equivalence, that's the highest-leverage place to focus.
Two 75-minute sessions, 150 minutes total, across two school days. Like every NJSLA-A grade 3-8 math test, the time is standardized. Item count varies by student because the test is adaptive.
No. Calculators are not allowed on NJSLA Math for grades 3, 4, or 5. Calculator-allowed units first appear at Grade 6. This is deliberate — NJ wants kids to develop number sense and computational fluency without the crutch.
Type II items are hand-scored reasoning problems worth 3 or 4 points each. Your child shows mathematical reasoning to solve a problem and earns partial credit for clearly explained correct steps even if the final answer is wrong. The other categories: Type I (machine-scored, 1, 2, or 4 points each) and Type III (hand-scored modeling, 3 or 6 points each).
On a 650-850 scaled score with 5 levels. Level 1 (650-699, Did Not Yet Meet), Level 2 (700-724, Partially Met), Level 3 (725-749, Approached), Level 4 (750-789, Met — the proficiency target), Level 5 (790-850, Exceeded). Within the test, Type I items are machine-scored; Type II and Type III items are hand-scored (or AI-scored on Writing — Math is still primarily machine-scored on Type I).
Multi-digit multiplication up to 4-digit × 1-digit (e.g., 3,245 × 7) and 2-digit × 2-digit (e.g., 47 × 36). For division, 4-digit ÷ 1-digit (e.g., 8,432 ÷ 6) with remainders interpreted in context. The assumption is that Grade 3 single-digit multiplication facts are fluent — if not, that's where to start.
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