Home Sub-90 Speed Dojo • 180 Non-Calculator Reflex Prompts

Sub-90 Speed Dojo

Select a Non-Calculator Reflex Track (30 Verified Prompts Each)

Track 1 • M1 / MM2Target: <5s

Exact Trig, Radians & Surd Rationalisation

Instant values of sin/cos/tan in radians, conjugate surds & quadrant signs

Track 2 • M1Target: <6s

Compound Units, Area/Volume Prefixes & Powers of 10

cm² ↔ m², cm³ ↔ dm³ ↔ m³, g cm⁻³ ↔ kg m⁻³, and standard form indices

Track 3 • PhysicsTarget: <6s

g = 10 Free-Fall, Parallel Resistors & Power Scaling

v = √(2gh), R₁R₂/(R₁+R₂), springs in series/parallel, and P = I²R = V²/R

Track 4 • ChemistryTarget: <6s

Stoichiometry, Cl₂/Br₂ Isotope Peaks, 24 dm³ Gas & pH

Br₂⁺ (1:2:1), Cl₂⁺ (9:6:1), RTP molar gas volumes, oxidation states & pH shifts

Track 5 • BiologyTarget: <5s

Linchpin Foil Truth-or-Myth Blitz

8-second elimination of classic UAT-UK Biology multi-statement misconceptions

Track 6 • MM2Target: <4s

Odd / Even Function Symmetry & Symmetric Integral Spotter

Spot Odd (∫₋ₐᵃ = 0), Even (2∫₀ᵃ), or Neither in under 5 seconds