The 9 times table on your fingers
The star trick of the book, explained with drawn hands. No more learning the 9 times table by heart.
What if your child became the one who puts their hand up first?
Not by working harder — by remembering cleverly: the 9 times table on your fingers, “My Very Easy Method Just Speeds Up Naming” for the planets, their, there or they’re… 175 memory tricks that stick in the brain, from CP to CM2 (ages 6–11), with 91 exercises and all the answers at the end. Print it at home (from €9.99) or get the paperback.
A little trick — a funny sentence, a picture, a gesture — that gets a difficult lesson into your head… and stops it getting out again. The proof: you still remember the ones from your own childhood!
The 9 times table that just won’t go in. Their, there and they’re mixed up for the hundredth time. Tomorrow’s test that stresses out the whole house. And that little sentence that breaks your heart: “I’m useless anyway.”
Ask your child the words of their favourite song: they know them all! The brain holds on to what is funny, visual and rhythmic — and forgets the rest. A memory trick turns each lesson into something impossible to forget. The proof: “Thirty days has September”, you still know it.
The star trick of the book, explained with drawn hands. No more learning the 9 times table by heart.
Three words that sound the same, three meanings: one little trick for each, and the mix-ups stop.
Mercury, Venus, Earth, Mars… the first letter of each word gives you the planet. Magic.
📋 See the complete list of the 175 tricks, subject by subject →
A memory trick doesn’t do the learning for your child: it gives them the little sentence, picture or gesture that makes it stick. Memorising becomes a game, revision takes five minutes, and homework at home becomes a calm moment again.
The times tables on your fingers, the < and > crocodile, mental maths shortcuts (× 5, × 9, × 11), fractions, rounding, perimeter and area, converting lengths with “King Henry Died Monday Drinking Chocolate Milk”, Roman numerals. One trick per idea, never an extra lesson.
The words that trip everyone up (their / there / they’re, your / you’re, its / it’s), the magic e, “i before e, except after c”, plurals, the -s of he, she, it, was or were. Each rule has its short sentence to remember.
The order of the planets, the compass points (“Never Eat Shredded Wheat”), the longest rivers of the UK, the 5 big periods of history, the water cycle, the colours of the rainbow (“Richard Of York Gave Battle In Vain”), insect or spider.
The lines of the stave (“Every Good Boy Deserves Football”), mixing colours, counting to 10 in French and Spanish, the 30-day months, left and right with the L hand, tying your laces.
91 short exercises check that each trick has sunk in, with the answers at the end of the book. Enough to turn passive revision into a quick quiz, alone or with a parent.
From CP (age 6) to CM2 (age 11), the same friendly method in every subject. No screen, no subscription: one book, and that’s it.
Written in very simple language, for children who doubt themselves: short sentences, everyday pictures, and a tone that gives back confidence on every page.

175 tricks · 9 subjects · 91 exercises with their answers — maths, spelling, grammar, geography, history, science
“Mum, the teacher asked who knew the order of the planets. I was the only one to put my hand up! ” A test coming up? Your child opens the book, finds the right trick, and walks into class one step ahead. You are going to see that smile often.
A funny sentence or a drawing that makes the concept stick in your head.
A concrete example, explained step by step, with everyday words.
A little challenge that turns the trick into a reflex.
All the answers are at the end of the book: children check their own work and become more independent.
The right trick at the right moment, and everything changes: homework stops being a battle. From €9.99 as a PDF (straight away) or as a paperback — tonight, show your child the 9 times table on their fingers… and watch their eyes light up.
Get the book · from €9.99One playful exercise a day by email, from Kindergarten to CM2, online or as a PDF to print. Unsubscribe any time.
Start the 31 days →Our commitments, in black and white
No empty promises: only what we deliver.
Printed on demand
Our paper books are made to order, in Europe: expect 2 to 5 working days for printing, then shipping.
Free delivery
Free shipping in mainland France, with no minimum order.
Free reprint
A printing defect on your copy? We will reprint it at our expense.
14 days to change your mind
The legal withdrawal period applies to all paper book orders.
No subscription
The 31-day Adventure is now free, and our books are sold individually: no subscription, no recurring charges.
Trademark registered at INPI
Kidibook is an independent French brand, registered at INPI.
PDF · immediate downloadFree workbook without email or registrationDesigned in France, from Preschool (3-4 years) to CM2 (10-11 years)