# 1. Mathematical Quickies & Trickies

Tired of constantly being fooled by tricky math questions? No longer do you need to, because help is now available.

An ideal e-book for numbers lovers—\$9.99 ONLY

Singapore’s bestselling Mathematical Quickies & Trickies, which has sold over 90,000 copies locally, contains more than 300 non-routine problems to enhance students’ mathematical problem-solving skills. With many creative worked examples and questions, and with cartoons sprinkled throughout the book, Mathematical Quickies & Trickies would appeal primarily to these audiences:

* grades 5-7 students and teachers looking for some fertile trick and tricky questions;

* mathletes preparing for local and regional contests and competitions;

* problem solvers longing to be challenged by questions whose obvious solutions are never the correct ones for what offhand appears to be true is false.

With proper insight, you’ll learn how to solve these tricky problems almost instantly, whose solutions are almost never the correct ones. You need no longer be caught off-guard; instead, you’ll learn to solve these questions confidently—how to tame these counter-intuitive questions into routine ones.

Contents
1. Mental Computation I
2. Mental Computation 2
3. Number Series
4. A Tricky Way with Fractions
6. Simplifying a Complex Fraction
7. Recurring Decimals
8. Is Zero an Even or Odd Integer?
9. Casting Out Nines
10. Be a Calculator Expert
11. Division by 9
12. Number Riddles
13. Ten Steps to be Math Smart
14. Shortcuts a la Trachtenberg
15. Geometrical Quickies 1
16. Geometrical Quickies 2
17. Geometrical Quickies 3
18. (Sugar + Coffee) + Milk = Sugar + (Coffee + Milk)
19. Applications of Number Laws
20. Law of One
21. Distributive Law
22. More Applications of Distributive Law
23. The Joy of Guesstimation
24. Are You a Fermi Disciple?
25. Bravo Singapore
26. Lightning Calculators
27. Geometrical Quickies 4
28. Some Calculator Quickies
Bibliography & References

Type of e-book: Nonfiction, problem solving, recreational, Singapore math, trick questions
Audiences: Suitable for Grades 4-7 (or Primary 4-7 levels)
Cost of e-book: \$9.99
File format: PDF (10.6 MB zipped file)
Product Queries: kcyan.mathplus(Replace this parenthesis with the @ sign)gmail.com

### ClickBank (click HERE) for \$9.99 ONLY!

Sample chapter: Casting Out Nines c9_quckiest

On Amazon.com, a printed copy of Mathematical Quickies & Trickies is priced at US\$12.90.

# 2. More Mathematical Quickies & Trickies

This long-awaited sequel of Mathematical Quickies & Trickles comes with many creative worked examples and questions, with cartoons sprinkled throughout the book to keep in line with the same irreverent and fun spirit of the previous book.

A wallet-friendly Singapore math problem-solving book for \$9.99 ONLY

In addition to 300+ trick and tricky questions, More Mathematical Quickies & Trickles comes with more than 25 five-minute enrichment mathematics items, aimed at enhancing the mathematical problem-solving skills of problem solvers.

You won’t only be exposed to different problem-solving techniques, commonly used in answering math contests and competitions questions, but also learn to appreciate elegant or intuitive solutions.

More Mathematical Quickies & Trickies would appeal primarily to these audiences:

* grades 6-8 students and teachers looking for some fertile trick and tricky questions;

* mathletes preparing for local and regional contests and competitions;

* problem solvers longing to be challenged by questions whose obvious solutions are never the correct ones for what offhand appears to be true is false.

### To buy the e-book version of More Mathematical Quickies & Trickies, click HERE for \$9.99 ONLY!

Contents
1. Creative GST
2. Are You Calculator-Smart?
3. What Is the Easy Way?
4. The Magic of Three Consecutive Numbers
6. What Is 27 x 37, Really?
7. Humanizing 1, 2, 3
8. A Mathophobia Kit
9. WITs: 13 Ways to Attain Mathematical Excellence
10. Facebook Math: Numeracy vs. Literacy
11. Thou Shalt Not Divide By Zero
12. Math Jokes to Relieve Stress
13. Look-see Proofs
14. Some PhD Math Questions
15. Mathematical Prayers
16. The Largest Product
17. What’s Wrong?: A Comedy of Mathematical Errors
18. The Aha! Myth
19. Sam Loyd’s Toughies
20. The Tuesday Boy Problem
21. What Is 1 + 1, Really?
22. In Love with Cryptarithms
23. Mathematical Kiasuism
24. The Mathemagic of 142857
25. The Lighter Side of Singapore Math
26. K C Yan’s Laws & Lores
27 Flee and Free from the FREE
Bibliography & References

Type of e-book: Nonfiction, problem solving, recreational, Singapore math, trick questions
Audiences: Suitable for Grades 6-8 (or Primary 6 – Secondary 2 levels)
Cost of e-book: \$9.99
File format: PDF (16.4 MB zipped file)
Product Queries: kcyan.mathplus(Replace this parenthesis with the @ sign)gmail.com

### You can buy the e-book version of More Mathematical Quickies & Trickies from:

Sample chapter: Mathematical Jokes ch12_more_quckiest

On Amazon.com, a printed copy of More Mathematical Quickies & Trickies is priced at US\$12.90.

# 3. Geometrical Quickies & Trickies

Bored by drill-and-kill geometry questions in your school textbook? Do you always feel ill-equipped to tackle those tricky questions in geometry?

Geometrical Quickies & Trickies may be the right place to broaden and deepen your visualization skills in solving geometry trick and tricky questions, commonly set in mathematics contests and competitions.

A book on trick and tricky questions in geometry

Not only you’ll be equipped with the problem-solving strategies and heuristics in solving non-routine geometry questions, but you’ll also be enriched with no fewer than 20 items of recreational geometry to enhance your appreciation with many hours of aha! moments.

Geometrical Quickies & Trickies would appeal primarily to these audiences:

* grades 6-9 students and teachers looking for some fertile trick and tricky geometry questions;

* mathletes preparing for local and regional contests and competitions;

* problem solvers longing to be challenged by geometry questions not normally discussed in the normal mathematics classroom.

Geometrical Quickies & Trickies is suitable for grades 6-9 problem solvers and mathletes, and for teachers and tutors who desire to challenge (or torture) their students mathematically. It contains over 200 non-routine geometry questions that may be used to separate the nerd of mathletes from the herd of drill-and-kill specialists.

Contents

1. What is a Circle?
2. Three Famous (or Notorious) Geometrical Problems
3. Non-Euclidean Geometry for Goondus
4. How Many Regions?
5. That Holy Little Geometry Book
6. Fun with Areas and Perimeters
7. Always a Parallelogram!
8. The Malfatti’s Problem
9. The Beauty of Pi
10. The Zero Option
11. The Golden Ratio by Paper Folding
12. The Ubiquity of Phi
13. Matchstick Mathematics
14. The Rolling Circle Question
15. Two Useful Circle Properties
16. Proving the Obvious
17. Sanguku—Japanese Temple Geometry
18. Applications of Pythagorean Theorem
19. Visualizing Infinity
20. Geometrical Idiosyncrasies
Bibliography & References

Type of e-book: Nonfiction, problem solving, recreational math, Singapore math, trick questions, geometry, enrichment math
Audiences: Suitable for Grades 6-8 (or Primary 6 – Secondary 2 levels)
Cost of e-book: \$9.99
File format: PDF (10.6 MB zipped file)
Product Queries: kcyan.mathplus(Replace this parenthesis with the @ sign)gmail.com

### You can buy the e-book version of Geometrical Quickies & Trickies from:

Sample chapter: The Rolling Circle Unit 14

On Amazon.com, a printed copy of Geometrical Quickies & Trickies is priced at US\$12.90.

### More e-books are on the way—look out for them!

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