- 57 pages
- English
- PDF
- Available on iOS & Android
eBook - PDF
About this book
This is an intriguing and original puzzle book where unknown numbers have to be identified by a series of cryptic clues. Logical thinking and systematic detective work is required and these puzzles offer a fine way to reinforce the meaning of mathematical words and to investigate and appreciate the ever fascinating properties of numbers.
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Yes, you can access The Number Detective by Jon Millington in PDF and/or ePUB format, as well as other popular books in Matematica & Giochi in matematica. We have over one million books available in our catalogue for you to explore.
Information
Table of contents
- Cover
- Title
- Introduction and Copyright
- Lowest number; Additions through the grid
- Three triples; Five pairs
- Which is the divisor?
- What's next?; A four figure number; Prime products?
- Fly away balloons
- Sets of consecutive numbers; Zero to eight
- A special Fibonacci number; A special prime; Alphabetical Order
- Missing the point?; Triple sums
- Semi-primes; What shape appears?
- Missing digits; A special two-digit number
- Nought to sixty
- Clock watching
- Phone numbers; Ten factors
- Sum and difference; Primes from digits; Find the fraction
- Logical thinking; Numerators and denominators
- Consecutive number sums; Number ring
- An exact cube root; Squares and cubes
- All different; A 5 x 5 magic square
- Equal pair sums; Eight and nine and seven; Lucky thirteen
- Star numbers
- A four-digit number; Six consecutive numbers
- A repeating rule; Squares in two ways
- Factorials; Equivalent to a half
- Pascal's triangle; Pascal puzzle 1
- Pascal puzzles 2,3,& 4
- Untitled
- Start with a thousand; Two digit triples
- Four missing digits; Fractions for decimals
- Both ways round; Numerators and denominators
- Digital keypads
- Common factors; Between the prime pairs; Prime difference
- Four proper factors; Three operations
- Amicable maze; Homing in
- Fractions from opposites; Palindromic number
- Sets of primes; Factors and Fibonacci
- Product pairs; Factorial eight; Missing digits
- More missing digits; Triangular numbers
- Two single-digit numbers; Just one out
- Double operations; Always one
- Domino square; Digits reverse
- Common factors; Magic squares
- The next lowest; Decimals or fractions
- Two operations, two orders; Fractions as decimals
- Reciprocal pairs; Matching solutions
- What power?; Prefect squares
- Tables of Prime Numbers; Squares and Cubes and Triangular numbers
- Tables of Proper Factors; Fctorials and Fibonacci Numbers
- Solutions to Puzzles 1-20
- Solutions to Puzzles 21-43
- Solutions to Puzzles 44-70
- Solutions to Puzzles 71-100
- Glossary