PUZZLE 8
What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?
PUZZLE 9
The following multiplication example uses every digit from 0 to 9 once (not counting the intermediate steps). Fill in the missing numbers.
7 _ _ * 4 _ = _ _ _ _ _
PUZZLE 10
Here's a simple multiplication problem in which each letter represents a different digit. Can you solve it?
IF * AT = FIAT
PUZZLE 11:
Write down the next number in this series:
18,46,94,63,52, ?
PUZZLE12:
Find the next letter in the series:
O,T,T,F,F,S,S,E,?
PUZZLE 13:
How many two-digit positive whole numbers are there?
PUZZLE 14:
Find four consecutive prime numbers that add up to 220.
SOLUTIONS
PUZZLE 8 : A Decimal Point. 5.9
PUZZLE 9 : 715 * 46 = 32890
PUZZLE 10 : IF = 41. AT = 35. FIAT = 1435.
PUZZLE 11 : 61. Each is a perfect square read from back to front
PUZZLE 12 : N – The series is the first letter of the numbers 1, 2,3,4,5,6,7,8, ? .so the next letter is N the first letter of Nine. 1[One],2[Two], 3 [Three], … 8[Eight], 9 [Nine].
PUZZLE 13: 90
PUZZLE 14: 47,53,59,61.
FOR MORE PUZZLES CLICK HERE
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What an intersting blog Malini. Appreicate it. I found your blog through MSI. Keep up the good work.
ReplyDeletethank u for your appreciation..
ReplyDeleteVERY INTERESTING AND USEFUL BLOG, MALINI/MADAM,
ReplyDeleteI AM NOT A TEACHER NOR A STUDENT, BUT I HAVE A GREAT THIRST FOR PUZZLES, BRAIN TEASERS, AND FUN WITH MATHEMATICAL FIGURES , PALINDROMES, TONGUE TWISTERS ETC.
KINDLY KEEP UP THE EXCELLENT WORK, WIHCH IS VERY USEFUL FOR THE STUDENTS AND MATHS LOVERS
With Warm Wishes... Neelakantan CS, Palakkad
VERY INTERESTING, N I C E AND USEFUL BLOG. EXPECT MUCH MORE INTERESTING FACTS (REGARDING MATHS) AND PUZZLES.
ReplyDeleteTANKS A LOT, MALINI Madam.
With regards and best wishes from
NEELAKANTAN C.S. PALAKKAD K E R A L A