Seven minutes, three parts.
Every day starts with a short warm-up on the facts you're shakiest on, then one strategy, then mixed problems where you pick the route. When you get one right, the app shows you a shorter way to the same answer.
Today's session
7 min
- 1Fact warm-upTimes tables and number facts, spaced so you see the tricky ones more often.2 min
- 2One strategyA 30-second lesson and a worked example, then a few problems to try it on.3 min
- 3Choose the routeMixed problems, no hints about which shortcut fits. Spotting it is the skill.2 min
Eight shortcuts, one at a time.
A new strategy unlocks once the last one sticks. Here's the set, from the first week to the ones that feel like magic.
- Near doubles
7 + 8 = 7 + 7 + 1 - Complements to 10 and 100
100 − 37 = 63 - Split by place value
47 + 38 = 40 + 30 + 7 + 8 - Left to right
623 + 159 = 723 + 59 - Round and compensate
298 × 4 = 300 × 4 − 8 - Subtract by adding up
1000 − 368: 368 + 632 = 1000 - Times 5
68 × 5 = 68 ÷ 2 × 10 - Times 11
43 × 11 = 473
If your own way feels easier, say so. The app keeps showing you the shortcut now and then, but it won't push one you don't like.
Practise, and collect crows.
Three to start with. Nine more to earn, from a three-day streak to two-digit problems in under three seconds.
Made to be practised, not to keep you scrolling.
- FreeNo ads, no subscription, nothing locked behind a paywall.
- CalmNo timer unless you want one. A wrong answer just shows you how it works.
- OfflineEvery session works without a connection, on a train or a plane.
- PrivateYour progress stays on your phone until you choose to save it to an account.
Your first session takes seven minutes.
A two-minute check finds what you already know, so you start where it's useful.
