Primary 4 Maths Help — Step-by-Step Video Lessons & Practice
Help your child understand every P4 maths topic and build confidence, one lesson at a time.
Find the Gaps Fast
A quick diagnostic pinpoints exactly where your child needs support — no guessing, just a clear path forward so every study session counts.
Step-by-Step Video Lessons
Friendly certified teachers explain every P4 maths concept clearly, so your child learns the method — not just the answer — and can solve similar sums independently.
Matches Their Classroom
Every lesson aligns with the MOE syllabus so your child practises exactly what they learn at school, building real confidence before every test.
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Primary 4 Maths Topics
1. Fractions
2. Introduction to Decimals
3. Adding and Subtracting Numbers
4. Multiplying and Dividing Numbers
5. Place Value
6. Patterns
7. Angles and Lines
8. 2D Shapes and Planes
9. 3D Shapes
10. Perimeter and Area
12. Time
13. Organizing Data
Discover Our Learning Areas
Explore key subjects and start learning with interactive content.
What Is Primary 4 Maths?
Primary 4 Maths is the fourth year of the Singapore MOE Mathematics programme. It is the point where the curriculum takes a meaningful step up in complexity, introducing topics that will be built on all the way through to PSLE. P4 Maths covers whole numbers up to 100,000, the four operations with larger numbers, fractions with unlike denominators, decimals, money, measurement, area and perimeter, angles, symmetry, and data analysis. Word problems become multi-step at this stage, requiring your child to plan their working and communicate their method clearly — a skill that is directly assessed in school examinations.
What Topics Are Covered in Primary 4 Maths?
The MOE syllabus for P4 Maths is organised into five main strands. Under Number and Algebra, your child works with whole numbers to 100,000, multiplication and division by a 2-digit number, factors and multiples, fractions (including equivalent fractions, adding and subtracting unlike fractions, and mixed numbers), and an introduction to decimals up to two decimal places. Under Measurement, they tackle area and perimeter of rectangles and composite figures, as well as time and money in context. Geometry covers angles, perpendicular and parallel lines, and symmetry. Statistics introduces tables and bar graphs with scales. Finally, Processes — problem solving using the model method, heuristics, and clear workings — cuts across every strand and is where many marks are won or lost in SA1 and SA2 examinations.
Is Primary 4 Maths Hard? Common Struggles at P4
P4 is the grade where many Singapore parents first notice their child finding maths genuinely difficult. There are several reasons for this. Fractions with unlike denominators require children to understand the concept of equivalence — not just follow a procedure — and many children who managed P3 fractions comfortably find this new step confusing. The introduction of decimals alongside fractions adds another layer, as children must grasp how the two relate. Area and perimeter of composite figures demands spatial reasoning as well as arithmetic. Multi-step word problems are longer, and children who read slowly or who rush may misinterpret what is being asked. The good news is that these are teachable skills. With the right explanation and consistent practice, the P4 hurdle is very manageable.
How Is Primary 4 Maths Assessed in Singapore?
Primary 4 students in Singapore sit school-based assessments at the end of each semester. Semester 1 Assessment (SA1) typically takes place around May and Semester 2 Assessment (SA2) in October or November. These examinations are set and marked by each school, but they follow the MOE syllabus framework. Paper 1 is a multiple-choice and short-answer paper completed without a calculator. Paper 2 is a longer-answer paper that tests problem solving and requires students to show full workings. Marks are awarded for method as well as the correct final answer, which is why understanding the reasoning behind each topic — not just memorising steps — is so important at P4.
Why StudyPug for Primary 4 Maths?
StudyPug is built around three things that make the biggest difference at P4: finding the gap quickly, explaining the concept clearly, and practising until it sticks.
The diagnostic assessment identifies exactly which P4 topics your child needs to focus on — fractions, decimals, area and perimeter, or word-problem structure — so you are never guessing where to start. There is no wasted time revisiting topics your child already understands.
Every lesson is delivered by a certified teacher in a short concept video. These are not AI-generated explainers — they are real teachers who walk through the method step by step, using the same language and visual models your child sees in a Singapore classroom. The goal is that your child understands why the method works, so they can apply it to any variation of the problem, not just the example shown.
Adaptive practice adjusts to your child's level after each question set. When they get something right consistently, the difficulty increases. When they need more support, the system offers scaffolded questions that rebuild confidence before moving on. This means your child is always working at the edge of their ability — the zone where real learning happens.
For parents, the parent dashboard gives a clear view of each child's progress across every P4 topic. If you have more than one child at school, the Family Plan covers up to five children under a single subscription — all grade levels, all subjects, one price.
StudyPug also offers printable worksheets with answer keys for Primary 4 Maths, giving your child screen-free practice they can complete at the kitchen table. Every worksheet is aligned to the MOE syllabus and comes with full worked solutions so you can help your child check their understanding, not just their final answer.
What Your Child Will Learn in Primary 4 Maths
StudyPug's Primary 4 Maths course covers the full MOE syllabus for the year. Key topic areas include:
- Whole numbers to 100,000 — reading, writing, comparing, and rounding
- Multiplication and division — including 2-digit multipliers and remainders
- Factors, multiples, and the relationship between them
- Fractions — equivalent fractions, adding and subtracting unlike fractions, mixed numbers and improper fractions
- Decimals — tenths and hundredths, comparing, adding and subtracting decimals
- Money — solving problems involving Singapore dollars and cents
- Measurement — converting units, solving measurement word problems
- Area and perimeter — rectangles, squares, and composite figures
- Angles — measuring and drawing angles using a protractor
- Perpendicular and parallel lines — identifying and drawing
- Symmetry — lines of symmetry in 2D shapes
- Bar graphs and tables — reading, interpreting, and drawing
- Multi-step word problems — applying the model method and heuristics
Because no validated topic-level URLs are currently available in the internal link map for this course, all topic navigation is available directly through the StudyPug Primary 4 Maths course page topic list.
How to Use StudyPug for Primary 4 Maths
Getting started takes less than five minutes. After signing up, your child takes a short diagnostic so StudyPug knows exactly where to begin. The dashboard then suggests a personalised learning path through the P4 Maths topics your child needs most.
A typical session works like this: your child watches a short certified-teacher video for the concept (usually 5–10 minutes), then moves into adaptive practice questions. The questions start at the right level and adjust as your child progresses. If they get stuck, a worked solution is always available — but only after they have attempted the problem, which is the research-backed approach for building retention.
StudyPug works on desktop, tablet, and mobile, so your child can practise at home or on the go. Free daily practice content is available without a subscription, so you can let your child explore the platform before committing. When you are ready for the full course, the 30-day money-back guarantee means there is no risk. If StudyPug is not the right fit for your child within the first 30 days, you receive a full refund — no questions asked.
You can also use StudyPug's Photo Search feature: if your child has a specific maths sum from their school worksheet or assessment book, they can photograph it and find the matching lesson instantly — available across all grades and subjects.
Check in on your child's progress anytime via the parent dashboard. You will see which P4 topics they have completed, which ones they are still working on, and how their performance is trending over time. Use this alongside their school report to have an informed conversation at the next parents-teacher meeting.
Primary 4 Maths FAQ
Unsure how StudyPug works? Need help with setting up? Check our frequently asked questions or contact us for help.
What does my child learn in Primary 4 Maths, and what topics does it cover?
Primary 4 Maths under the MOE syllabus covers whole numbers up to 100,000, the four operations, fractions, decimals, money, measurement, area and perimeter, geometry, and data analysis including bar graphs and tables. Your child also begins more structured word-problem solving, learning to show workings clearly. By the end of P4, they should be comfortable applying multiple steps to solve real-world maths problems — laying essential groundwork for Primary 5 and 6 and eventual PSLE preparation.
Is Primary 4 Maths hard, and where do children commonly struggle?
P4 is widely considered the first significant step-up in Singapore maths. The jump from P3 comes in fractions — equivalent fractions, adding and subtracting unlike fractions, and mixed numbers trip many children up. Decimals and their relationship to fractions is another common stumbling block. Area and perimeter, especially when combined in a single problem, also causes difficulty. Word problems become longer and require two or more steps, which challenges children who are still building reading comprehension alongside maths skills. Consistent practice and clear concept explanations make a measurable difference at this stage.
What should my child know before Primary 4 Maths, and what comes next?
Your child should be confident with P3 Maths: multiplication and division within 10,000, basic fractions (simple unit fractions), mental calculation strategies, and telling time. Moving into P4, they extend all of these. After P4, Primary 5 Maths introduces more complex fractions, ratio, percentage, and volume — topics that are heavily tested at PSLE. A strong P4 foundation, especially in fractions and decimals, is essential for keeping up in P5 without remediation. StudyPug's diagnostic can quickly show you whether any P3 gaps need filling before your child moves forward.
How does StudyPug Maths map to what my child learns at school?
StudyPug's Primary 4 Maths content is aligned to the Singapore MOE Mathematics syllabus. Lessons cover every strand — number, measurement, geometry, statistics, and problem solving — in the same sequence and depth that your child encounters at school. Whether their school follows the standard SA1 and SA2 assessment structure or uses school-based assessments, the practice problems are based on real exam formats so your child is always preparing for what actually appears in tests. You can browse topics by syllabus strand directly from the course page.
What is one of the trickiest Maths concepts in Primary 4, and how is it taught?
Fractions — specifically adding and subtracting fractions with different denominators — is the concept that catches most P4 students off guard. Many children can handle simple fractions from P3 but struggle when they must find a common denominator, convert, then simplify the answer. StudyPug's certified teachers walk through this step by step in short concept videos: first explaining why the denominators must match, then showing the method with visual models, then practising with increasing difficulty. The goal is that your child understands the reasoning — not just memorises the steps — so they can handle any fraction sum independently.
How much Maths practice should my child do at Primary 4?
Most MOE-aligned tutors and teachers suggest 20–30 minutes of focused maths practice on school days and a slightly longer session of 40–45 minutes over the weekend. For P4, this works out to roughly 2–2.5 hours per week. Short, daily sessions tend to outperform longer weekly cramming because maths skills build through repetition and spacing. StudyPug's adaptive practice adjusts to your child's level so each session stays productive — harder when they're ready, supportive when they need reinforcement — making the most of every minute they spend practising.
