Quiz: Less or More

Which is more: 17 × 8 − 2, or 157? You have a second to decide, and no time to work it out exactly. Less or More is a mental arithmetic game about judging size fast. Two numbers, one screen, one tap. A round is sixty seconds. HOW IT PLAYS An expression on top, a plain number below. Tap the bigger one. The clock never stops. THREE MODES Classic — one minute, a point per correct answer, three mistakes end the round. Race — one minute to start. A right answer buys two seconds, a wrong one costs five. Last as long as you can. Duel — two players, one phone. You play a minute, hand the phone over, and the second player gets exactly the same problems in the same order. Then both runs sit side by side, problem by problem, with the ones you disagreed on named. FIVE LEVELS 1 — addition, numbers up to nine 2 — addition and subtraction, answers can go below zero 3 — three numbers, one of them…