MindCalc Arithmetic Trainer vs 1×1 Master

Train your mental arithmetic ability with MindCalc! This is NOT your standard "what is 7 * 13?" type of game but here the result is already known and an arithmetic operator is given. Now you need to pick two numbers out of 9 to make this equation happen. The faster you solve your equation, the more points you gain. But if you make a mistake you need to start all over - so be careful! For an extra kick choose the highest difficulty where your score will be reset to zero in case you run out of time. You can also compete against another person to see who has stronger mental arithmetic skills!

Your times tables – automatic at last. 1×1 Master is the times-tables trainer for adults. For everyone who briefly freezes when 7×8 or 6×9 comes up in everyday life – and finally wants to change that. Calm, respectful, and free of childish clutter. No brute-force memorization: 1×1 Master builds on the tables you already know and derives every hard fact from them. HOW IT WORKS • 2-minute sprint in three phases First estimate the magnitude, then recall the fact reliably, and finally apply it to everyday situations – short enough for every day. • Anchor hints Hard facts are derived from anchors you already know: 7×8 becomes 5×8 plus 2×8. Real understanding instead of blind drilling. • Spaced repetition Speed and accuracy decide when a fact comes back. You practice exactly what is still shaky – not what you mastered long ago. • Mastery matrix The 10×10 matrix shows at a glance which facts are automatic, which are in training, and which are still uncertain. • No-shame onboarding A calm check without right-or-wrong judgment determines your starting point. No pressure, no red pen. PRIVATE BY DESIGN • No accounts, no sign-up • No cloud – everything stays on your iPhone • No ads, no tracking • Works completely offline Times tables are not kid stuff. They are a foundation – and it is never too late to finally lay it properly.