🎉 PSLE Math Revision Notes – Made Fun!

Let’s face it: math can feel like a rollercoaster ride. But with the right tricks, tips, and a sprinkle of fun, it becomes wayless scary. Here’s your all-in-one cheat sheet to tackle those PSLE math monsters with confidence! 💪

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1. 🧮 Whole Numbers

• Add, subtract, multiply, divide like a pro.
• Know your place value — tens, hundreds, ten-thousands (yes, they’re real!).
• Master BODMAS (the math version of traffic rules).
• Word problems? Break them down and conquer.

💡 Quick Tip: Estimate first — your answer should feel right.

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2. ✖️ Algebra

• Use letters (like x or y) to represent the unknown.
• Solve simple equations: 3x = 15 → x = 5. Boom.
• Turn words into math. “3 times a number is 24” → 3x = 24 → x = 8.

🔍 Think of algebra like solving a mystery – you’re just finding the missing piece!

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3. 🍰 Fractions

• Slice up those pizzas (fractions!) with confidence.
• Add, subtract, multiply, divide — just follow the rules.
• Convert between improper fractions and mixed numbers like a math magician.

🪄 Fraction Tip: Common denominator = happy fractions.

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4. 💯 Percentage

• % just means “out of 100.” Simple, right?
• Convert between % ↔ decimals ↔ fractions like a boss.
• Find percentage of numbers, increases, decreases.

🧠 Formula: (Part / Whole) × 100%

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5. ⚖️ Ratio

• It’s just comparing things: 2 : 3 means for every 2 apples, there are 3 oranges.
• Use it to split amounts or compare parts to wholes.

🎯 Strategy: Total parts = your magic number.

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6. 🏃 Speed

• Speed = Distance ÷ Time
• Distance = Speed × Time
• Time = Distance ÷ Speed

🛑 Pro Tip: Units matter! (km/h ≠ m/min)

🚗 Use the triangle trick to remember formulas!

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7. 🎯 Circles

• Radius = from center to edge.
• Diameter = 2 × radius.
• Circumference = π × diameter.
• Area = π × r²

🥧 Use π ≈ 3.14 or 22/7. No need to memorize beyond that!

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8. 🕵️‍♂️ Supposition (aka Assumption Method)

• Pretend (assume!) all items cost the same.
• Find the total. Compare with actual total.
• Adjust and solve!

🔄 It’s like reverse-engineering a puzzle.

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9. 💸 Excess and Shortage

• Same total money, different number of items.
• More items → money leftover = excess
• Fewer items → not enough money = shortage

💰 Use: Difference in $ ÷ difference in items = cost per item

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10. 📐 Geometry

• Know your angles!
  • Straight line = 180°
  • At a point = 360°
  • Triangle = 180°
  • Quadrilateral = 360°
  • Opposite angles = twins 👯‍♀️

🖊️ Label your angles and draw neatly. Geometry loves clean lines!

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11. 🔁 Tessellation

• It’s like math wallpaper – shapes that repeat perfectly.
• Triangles, squares, and hexagons? Yes! Circles? Nope.

🎨 Challenge: Try creating your own pattern at home!

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12. 🎁 Nets of Cube

• A cube has 6 faces. Nets are the “unfolded” version.
• Common shapes: T-shape, cross, zigzag.
• Mentally fold to check if it forms a cube.

📦 Think of it like folding a gift box. Can all faces close nicely?

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🌟 Final Boost!

• Keep practicing.
• Use your Mistake Journal — it’s your secret weapon!
• Don’t memorise — understand.
• And most importantly: YOU GOT THIS! 💥

👨‍👩‍👧 Parents: Want to make it more fun? Use snacks, mini-quizzes, or sticker rewards for completed topics. Make math moments memorable!