Description

Square 65, 96 or 115 in your head, and know why it works.

This Squaring Secrets Book turns six mental-math tricks into missions. In each one 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 six missions

1. The Big-Five Blaster: square any number ending in 5
2. The Fifty Force Field: square numbers close to 50
3. The Hundred Hop: square numbers close to 100
4. The Square Splitter: square any two-digit number
5. The Staircase Jump: get from one square to the next
6. The Twin Trick: multiply twins like 48 × 52

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

What’s inside

• Find the Pattern, Understand Why it works, Practice the trick and a Game for every mission
• Bronze, Silver and Gold practice for each trick
• A full answer key
• A mission tracker and “My squaring powers” checklist
• Printable pages you can reprint for every child at home

Bonus: Play the Online Missions for Free. Your order email includes a password that unlocks all the online missions, where answers check themselves and the game keeps your score.

Grades 5 to 8, 32-page PDF, Instant download after payment