@georgixmaths

Bet you get this wrong. 3² × 3³ = ? A 9⁵, B 3⁶, C 3⁵ or D 6⁵: drop the letter 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #indices #powers #gcse #maths #year11mathsrevision

Bet you get this wrong. 0.5 × 0.5 = ? A 2.5, B 0.25, C 0.5 or D 25: drop the letter 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #decimals #multiplyingdecimals #gcse #maths #year11mathsrevision

5 Higher paper traps examiners keep seeing 😳 Ratio, diameter vs radius, transforming graphs, relative frequency and interior angles. Share £120 in the ratio 3 : 5. Pause and try it first. Year 11 maths revision: save this for your mock and send it to a Year 11. Free sheet in my bio. #gcsemaths…

Changing the subject 🔑 Make x the subject of y = 5x − 7. The trap: (y − 7)/5. Undo in reverse order, last thing first: add 7, then divide by 5. x = (y + 7)/5. What did you pick? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision…

Graph transformations 🔀 Outside the bracket moves it up and down like you'd expect. Inside the bracket goes the OPPOSITE way: f(x + 2) moves LEFT 😳 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #graphs #gcse #maths #mockexam

£40 → £50. Percentage increase? 📈 Most people do 10 ÷ 50 = 20%… but you always divide by the ORIGINAL: 10 ÷ 40 = 25%. Did you get it? 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #maths #percentages #gcse #mockexam

Standard form in 90 seconds 🔬 Count the hops of the decimal point: big numbers get a positive power, small numbers a negative one, and A must be between 1 and 10. Write 34 × 10⁴ and lose the mark 😳 Did you know that one? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my…

Estimation 🎯 Round to 1 significant figure: 50 × 3 ÷ 0.5. The trap: dividing by 0.5 is NOT halving. 150 ÷ 0.5 = 300, because dividing by a half doubles it. What did you pick? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision…

x² − x − 6 < 0 📉 Factorise, sketch the U, and less than zero means below the axis: −2 < x < 3. The trap: just copying the sign and writing x < −2, x < 3 😳 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #inequalities #gcse #maths #mockexam

14 out of 40 chose tea. What's the angle? 🥧 It's not 14° and it's not 35°. 360 ÷ 40 = 9° per person, so 14 × 9 = 126°. Did you get it? 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #maths #piechart #gcse #mockexam

Probability trees in 90 seconds 🌳 Multiply ALONG the branches, ADD the paths you want, and watch the denominator drop without replacement. Add along a branch and you get 0 marks 😳 Which bit catches you? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths…

HCF and LCM 🚌 Red buses every 12 minutes, blue buses every 18. Both leave at 9:00. The trap: 12 × 18 = 216 minutes. They do meet then, but not first. Lowest common multiple: 12, 24, 36 and 18, 36. So 9:36 am. What did you pick? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet…

Solve x² − 2x − 3 = x + 1 with a graph 📈 Draw both sides, find where they cross, read the x values: −1 and 4. The trap: writing the y values instead 😳 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #graphs #gcse #maths #mockexam

€92 in Paris or £75 in London? 💶 £1 = €1.15. Most people multiply and get £105.80… but euros to pounds you DIVIDE: 92 ÷ 1.15 = £80. London is £5 cheaper. Did you get it? 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #maths #exchangerates…

Ratio in 90 seconds ⚖️ Simplify, share an amount, the difference question, and the trap: 3:2 is three FIFTHS, not three halves. Count the total parts first 😳 Do you mix it up? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #ratio…

Recurring decimals 🔁 Write 0.272727… as a fraction. The trap: 27/100 is 0.27 and stops. Call it x: 100x = 27.2727…, take away x, 99x = 27, x = 27/99 = 3/11. What did you pick? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision…

Gradient of a curve 📈 A curve keeps changing steepness, so draw a tangent that just touches it, pick two points far apart, rise over run. The trap: two points on the curve make a chord, not a tangent 😳 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11…

Which pack is better value? 🧻 6 rolls for £2.70 or 10 rolls for £4.20. Cheaper price tag ≠ better value. Find the price of ONE roll: 45p vs 42p. Did you pick B? 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #maths #bestbuy #gcse #mockexam

Circle theorems in 90 seconds ⭕ Centre angle is double, same segment, semicircle, cyclic quadrilateral, tangent and radius. Right angle but no reason? No marks 😳 Which one do you forget? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11…

Inverse proportion ⚖️ y = 12 when x = 3. Find y when x = 9. The trap: x went up 3 times so y × 3 = 36. That's direct proportion. Inverse means x × y stays the same: 3 × 12 = 36, so y = 36 ÷ 9 = 4. What did you pick? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio…

Inequality regions 📐 y ≥ 1, y < x, x + y ≤ 6. Draw the lines, test a point, shade where all three overlap. The trap: < or > means a DASHED line, points on it don't count 😳 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #inequalities #gcse…

Estimate (49.6 × 3.08) ÷ 0.51 🧮 Round to 1 s.f.: 50 × 3 ÷ 0.5. Most people halve it and write 75… but dividing by a half DOUBLES it. Did you get 300? 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #maths #estimation #gcse #mockexam

Percentages in 90 seconds 💯 Multipliers (×1.2 up, ×0.85 down), percentage change, and the reverse percentage trap: 64 after 20% off is NOT 64 × 1.2. Divide by 0.8 and it's 80 😳 Did you fall for it? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11…

How many tins of paint? 🎨 A 6 m by 2.5 m wall, one tin covers 4 m², a tin costs £7.50. Most people pay for 3.75 tins… but shops only sell WHOLE tins. Round UP! Did you get £30? 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #maths #area…

Compound interest 💷 £2000 invested for 2 years at 3% per year compound interest. How much is in the account? The trap: 3% of 2000 = 60, times 2 years = £2120. That's simple interest. Compound means the interest earns interest: 2000 × 1.03² = £2121.80. What did you pick? Drop it 👇 Year 11 maths…

Area under a curve 📈 No formula? Split it into strips, join the tops, and every strip is a trapezium. 4.5 + 2.5 + 2.5 + 4.5 = 14. Then the bit everyone forgets: is it an overestimate or an underestimate? 🤔 Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11…

Inequalities in 90 seconds ↔️ Open vs filled circles, solving like an equation, and the one rule that catches everyone: divide by a negative and the sign FLIPS. Forget it and you get 0 marks 😳 Do you test your answer? Drop it 👇 Year 11 maths revision: save this for your mock. Free sheet in my bio…

Is 2³ × 2⁴ = 4⁷? 😳 Nope. Seven 2s in a row make 2⁷ = 128, but 4⁷ is 16384. Same base: add the powers and never change the base. Did you fall for it? Drop a 🙋 below. Year 11 maths revision: save this for your mock. Free sheet in my bio. #gcsemaths #year11 #mathsrevision #indexlaws #powers #gcse…

Conditional probability 🎲 40 students, Venn diagram. A French student is picked: what's the probability they study Spanish? The trap: 8 out of 40 = 1/5. But we already know they study French, so only count French: 12 + 8 = 20. The answer is 8/20 = 2/5. What did you pick? Drop it 👇 Year 11 maths…

Volume of a cone 🍦 Radius 5 cm, slant height 13 cm. The trap: using the slant height as the height. The real height comes from a right-angled triangle: 5² + h² = 13², so h = 12. Then V = 1/3 x π x 25 x 12 = 100π. What did you pick? Drop it 👇 Year 11 maths revision: save this for your mock. Free…