Mental Maths Games vs Double Digits

Mental Maths is the ultimate mental math trainer for kids, students, and adults who want faster arithmetic, sharper focus, and stronger math skills. Practice mental math, times tables, percentages, algebra, square roots, and more with fun mental math games designed for Grades 1–12. Whether you're preparing for SAT, ACT, GMAT, GRE, MCAT, PSAT, school exams, or simply want better everyday math skills, Mental Maths helps you improve speed, accuracy, and confidence without needing a calculator. Train your brain in minutes a day with fast-paced mental math practice, daily challenges, streak tracking, and customizable math drills. FEATURES MENTAL MATH TRAINER FOR GRADES 1–12 Choose your grade level and get math exercises matched to your curriculum: * Grade 1–2 math: addition and subtraction * Grade 3–4 math: multiplication tables and division * Grade 5 math: percentages and multi-digit arithmetic * Grade 6 math: negative numbers and advanced division * Grade 7 math: algebra and percentages * Grade 8 math: squares and square roots * Grade 9–12 math: advanced algebra, powers, and pre-calculus speed practice SIX MENTAL MATH GAME MODES * Boost Mode: 60-second mental math sprint * Practice Mode: Relaxed untimed math practice * Speed Drill: Timed mental math reflex training * Test Mode: Exam-style math test * Cycle Mode: Repeat operations until automatic * Daily Challenge: New curated mental math challenge every day CUSTOM MATH PRACTICE Create your own mental math workout: * Choose operations * Adjust difficulty * Set timer length * Select question count * Mix operations freely NINE OPERATION TYPES Practice: * Addition * Subtraction * Multiplication * Division * Percentages * Squares * Square roots * Powers * Simple algebra MENTAL MATH TIPS & TRICKS Learn fast math shortcuts and head-math strategies: * Multiply by 11 instantly * Square numbers ending in 5 * Mental multiplication near 100 * Faster percentage calculations * Division shortcuts * Mental addition tricks * And more DAILY CHALLENGES & STREAKS Build consistency with: * Daily mental math challenges * Streak tracking * 14-day practice calendar * Progress motivation TRACK YOUR PROGRESS Monitor: * Accuracy * Time spent practicing * Session history * Weak areas * Mistake review with explanations CLEAN & FAST DESIGN * Modern Material Design * Light mode and dark mode * Smooth animations * Haptic feedback * Optimized for phones and tablets FREE MENTAL MATH TRAINING * No required login * No account needed * No paywall on core training * Offline-friendly practice PERFECT FOR * Kids learning times tables * Students preparing for math exams * Teachers needing classroom math drills * Adults improving mental arithmetic * Anyone wanting better everyday math skills Stop reaching for the calculator. Start training your brain with Mental Maths — the fast, fun, and effective mental math trainer.

Answer two-digit multiplication in your head, instantly. Interview math, exam questions, quick estimates at work. When two-digit multiplication gets fast, the time you spent calculating goes back into thinking. Double Digits is a drill focused on one thing: solving two-digit multiplication again and again until it's fast. Use it to prepare for interviews and exams, or as a few minutes of daily brain training. ACE THE NUMBERS IN INTERVIEWS Consulting case interviews and trading firm mental math tests are done without a calculator. When two-digit multiplication comes instantly, you can keep your focus on the problem itself. PREPARE FOR EXAMS Many entrance exams don't allow calculators. Faster arithmetic leaves more time for the hard questions. BE QUICK WITH NUMBERS AT WORK "37 units at $48 each?" Answer on the spot in meetings and negotiations, and sanity-check estimates before you reach for a calculator. A DAILY WORKOUT FOR YOUR BRAIN Two-digit multiplication means holding numbers in your head while you calculate, which makes it an easy daily brain workout. Watch your times drop as you keep at it. PRACTICE FROM JUST 10 PROBLEMS In Practice, choose a number to learn and a range to multiply it by, and start with as few as 10 problems. It begins with 3 × 10–19. Go after your weak numbers and ranges as often as you like. CONQUER EVERY NUMBER FROM 1 TO 99 In Challenge, take on 90 problems: your chosen number times every two-digit number from 10 to 99. Solve them all to clear it, and work toward clearing all 99. SEE YOURSELF IMPROVE Every finished run records your time and adds it to a line chart. A line sloping downward is your progress. The days you practice are recorded too, so you can keep your streak going. COMPETE WITH OTHER PLAYERS Challenge supports Game Center leaderboards, with a separate board for every number, so you can aim for the top on your best numbers. Signing in is optional; every feature works without it. FEATURES - A drill focused on two-digit multiplication - Practice: start with just 10 problems - Challenge: 90 problems for each number from 1 to 99 - Best times and progress charts for each number and range - Daily streak tracking - Game Center leaderboards - Light and dark mode