Description

Multiply 73 × 11, 48 × 25 or 97 × 94 in your head, and know why it works.

This Multiplication Shortcuts book turns nine mental-math tricks into missions. In each trick, your child cracks a mystery, sees the trick revealed step by step, learns the secret behind it, practises it, and then plays a game with it. Each mission takes about fifteen minutes.

The nine missions

• The Eleven Express: multiply any two-digit number by 11
• Half of Ten: multiply by 5 by halving
• Quarter Power: multiply by 25 by taking a quarter of 100
• The Nine Shortcut: multiply by 9 and by 99
• Write It Twice: multiply by 101 and by 1001
• Halve and Double: swap a hard multiplication for an easy one
• Just Below a Hundred: multiply two numbers just under 100
• Just Above a Hundred: the same idea for two numbers just over 100
• The Tens Twins: multiply pairs like 43 × 47

Plus a Boss Challenge at the end to earn the Multiplication Master badge.

What’s in Each Mission

• Find the Pattern
• Understand Why it works
•  Practice each trick (Bronze, Silver and Gold Levels)
• An interesting Game involving the Trick
• A mission tracker and a “My multiplication powers” checklist
• Printable pages you can reprint for every child at home

Coming soon, free to you with this book: The Online Missions. Every mission is getting an online version where you can get more practice, get instant feedback and the game keeps your score. Mission 1 is already free for anyone to play.

Grades 5 to 8, 45-page PDF, Instant download after payment