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Mental Maths Games for Kids

Mental maths means working out answers in your head, quickly and accurately. It is the skill that makes school tests easier and everyday life smoother, from checking change to splitting a bill. Maths Guru turns it into fast, rewarding games.

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What mental maths really is

Mental maths is not just fast recall. It combines three things: knowing number facts (such as times tables and number bonds), having strategies to break a hard calculation into easy steps, and holding numbers in working memory long enough to finish.

Strategies are the heart of it. To add 98 + 47, a child can add 100 and take 2 away, getting 145. To subtract 63 − 29, subtract 30 and add 1 back, getting 34. To work out 15 × 6, split into 10 × 6 and 5 × 6, which is 60 + 30 = 90. These tricks use the same facts, but in cleverer ways.

Children who practise these routines get faster and more accurate, and they also develop a feel for numbers. They start to notice that 25 × 8 is just 800 divided by 4, which is 200.

Common mistakes to watch for

Speed without accuracy is the most common problem. A child who answers in two seconds and is wrong half the time is not doing better than one who takes five seconds and is right. Praise accuracy first, then speed.

Another is relying on a single method, usually counting up in ones. This works for small numbers but breaks down quickly with bigger ones. Encourage children to look at the numbers before choosing a strategy, because 98 + 47 invites "round up", while 52 + 48 invites "make 100".

Memory slips are common with multi-step problems: forgetting the first number halfway through. It helps to say the running total aloud ("47, then 94, then 101"). Finally, children often feel anxious under time pressure. Short, low-stakes practice with small wins builds confidence much faster than occasional high-pressure tests.

How to practise at home

Keep it short, regular and playful. Five minutes in the car or while waiting for dinner is ideal. Ask a quick question, such as "what is 9 + 6?" and then ask your child how they got it, so they hear and compare different strategies.

Use games: roll two dice and multiply, race to be the first to say the answer to a flash card, or play "beat the clock" with ten questions and a timer. Aim for personal bests rather than comparing with siblings.

Add real-life mental maths: work out the change at the shop, double a recipe, or estimate how long a journey will take. Gradually let your child do more of the mental work themselves, and do not rush to supply the answer. Struggling for a moment is part of learning.

How Maths Guru builds mental maths

Time Skip is built around mental speed. Choose Basic for the four operations, Advanced for fractions, BODMAS and measurement, or Expert for harder topics, and answer as fast as you can with three lives. Laps mode adds six laps of ten questions that get shorter every lap. Memory Dash trains working memory: numbers or equations flash briefly, then disappear and you must answer from memory.

Mental arithmetic also powers Neon Clash's forge, where quick answers earn extra gears, Number Kingdoms duels, where fast answers strike first, the timed levels of Conquer the World, live Classroom quizzes and the quiz gates of Adventure Trail. Every question is timed, which builds speed gradually.

Worked examples

98 + 47

Answer: 145

98 is 2 less than 100. Add 100 + 47 = 147, then take away the extra 2 to get 145.

63 − 29

Answer: 34

Take away 30 instead: 63 − 30 = 33, then add back the 1 you took too much to get 34.

25 × 8

Answer: 200

Four 25s make 100, so eight 25s make 200. Or: 8 × 25 = 8 × 100 ÷ 4 = 200.

15 × 6

Answer: 90

Split 15 into 10 + 5. Then 10 × 6 = 60 and 5 × 6 = 30, and 60 + 30 = 90.

4 × 17 × 5

Answer: 340

Multiply the easy pair first: 4 × 5 = 20, and 20 × 17 = 340 (10 × 17 = 170, doubled).

1000 − 387

Answer: 613

Make 1000 from 387 by counting up: 3 to 390, 10 to 400, 600 to 1000. In total 3 + 10 + 600 = 613.

Tips for parents

  • Praise accuracy first and speed second; speed follows from secure facts.
  • Ask "how did you get that?" so your child shares and compares strategies.
  • Practise number bonds, doubles and times tables until they are automatic.
  • Keep sessions to five minutes, and stop on a success.
  • Say running totals aloud for multi-step problems.

Practise it in these games

Questions parents ask

What is mental maths?

It is working out calculations in your head using number facts and strategies, without a calculator or written method. It is tested in school and used constantly in daily life.

How can I improve my child's mental maths speed?

Short, regular practice with games and timers works best, alongside secure number bonds and times tables. Maths Guru's Time Skip and Memory Dash are built for this.

Is timed practice bad for anxious children?

Not if it is playful and low-stakes. Start with a generous time, celebrate personal bests, and avoid comparing with others. Time Skip's Basic tier is a gentle starting point.

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