Questions tagged [missing-digits]

A puzzle involving a calculation from which some digits have been removed. Different from an [alphametic] in that it is not specified which digits are the same or different from each other.

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2
votes
2answers
161 views

Missing number in a set of four segment circles

This is a puzzle posted on a social networking site that I have been trying hard since yesterday to solve: My approach has been to find out a mathematical function with the numbers in the yellow, ...
11
votes
2answers
292 views

Find the missing number from the pyramid

? 1 3 3 3 9 9 3 1 9 Find the missing number in the pyramid?
9
votes
1answer
436 views

Missing number puzzle: how to get this answer?

Today I went to pick up my daughter from school before the start of the winter holidays. I found her chatting with her teacher and they presented me with a little math puzzle. It was on a card from a ...
1
vote
3answers
357 views

Please help me to identify the pattern

$(A)72$ $(B)18$ $(C)9$ $(D)19$ Source:My coaching DPP The question asks you identify the pattern and find the missing character. I have been trying to solve this problem from a long time but I ...
-6
votes
1answer
159 views

Find the next number in the weird sequence

The following sequence has been made using a specific pattern and the last number is kept secret. We have to find that number along with the pattern followed to make the sequence. 3, 11, 32, 71, ...
1
vote
2answers
189 views

Find the hidden message in this weird array

This puzzle is from my best friend. ? ? 0 ? ? ? ? ? 1 3 0 1 8 2 0 Figure out the answer. Do not ignore any of the tags! Hint:
3
votes
1answer
424 views

Missing Number in a Seven Segment Circle

What number should replace the question mark? Please be helpful. If you have the answer, please reply to this post with the explanation and answer. If you don't have the answer, then don't comment. ...
5
votes
1answer
359 views

Oh go dear! again… we Here

What is the missing one? $\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, $ [Some colours look alike, sorry about that, but then again you don't really need to be able to make a visual difference between them, ...
3
votes
1answer
224 views

1-2-3 Ending Puzzle

$ED \quad \ \ \ EN \quad \ \ UE$ $451\ \ \ \quad 662\ \ \quad8w3$ $1601\quad2062\quad16x3$ $2551\quad2282\quad16y3$ $2551\quad1112\quad10z3$ There's only one possible value apiece for $w, x, y$ ...
1
vote
1answer
213 views

Find the missing number in the matrix [closed]

Find the missing number, $x$, in the following matrix $$\begin{matrix} 16 & 13 & 9\\ 11 & 8 & 6\\ 9 & 7 & x \end{matrix}$$
1
vote
1answer
271 views

Missing number in 5-cell grids

Find the missing number in these grids. I was unable to find any pattern. Choices: 9 6 8 4 source: Borhan Motevasete magazine, Oct. 2007
4
votes
0answers
1k views

A 4x4 grid puzzle with one missing number [closed]

I can't find any logical relationship in this grid! Could someone help me, please? and choices are A. 8 B. 6 C. 5 D. 4 This book is the source of the puzzle. The translation of its title is ...
4
votes
1answer
758 views

Number circle with gaps

Does anyone know what this is and how to solve it? Thank you.
6
votes
1answer
449 views

Find the next number [closed]

"I will, of course, kill you if you don't answer. But that's a given, isn't it?" The Enemy says. "So come, Zero, and show me your legendary brain." $2.828,\quad5.196,\quad11.180,\quad18.520,\quad x$ ...
12
votes
1answer
1k views

Can't solve a find the missing number question

I found the following question on the TORN forums, and haven't been able to solve it. $$\begin{matrix}2&9&4&4\\6&0&3&0\\1&3&0&1\\0&5&7&3\\x&8&...
3
votes
2answers
388 views

Find the missing digits [closed]

How to solve these missing number questions, and what logic should be applied to solve these type of questions?
5
votes
1answer
330 views

PUZZLE WORLD alphametic

I have tried to solve this but I can't. Does somebody know the answer? Ref: Puzzle World, Ed. Nob Yoshigahara and Richard Bozulich, Ishi Press, Summer 1992, Pilot Edition.
0
votes
2answers
356 views

Find the missing digit in the sequence 0110100011111?0011000011011 [closed]

What digit would you put in place of question mark in the below sequence and why? 0110100011111?0011000011011 P.S. Hint: 0=1, 1=0,...
14
votes
2answers
928 views

What are the missing numbers?

The question is to find the value(s) of *. All the values may be same or different. for example- one of the * could be 8 while another one could be 4. P.S. While cleaning my old cupboard, I came ...
12
votes
3answers
962 views

Reconstructing long division problems

How do I reconstruct the following exact long division in which the digits that have been replaced by letters except for the middle digit - the '8' - in the quotient. I've never seen one of these ...
18
votes
2answers
2k views

Someone has vandalised this long division. Can you reconstruct it?

Oh dear, someone has vandalised this long division. They've replaced every digit either with a wrong digit or a hyphen. Your task: reconstruct the entire thing. There's no remainder. Please show ...
5
votes
2answers
1k views

How many digits can be removed from a division puzzle?

Similarly to How many digits can be removed from a multiplication puzzle and still give only one answer? I am curious about division puzzles. I know this puzzle: . It has only 2 out of 42 digits $\...
6
votes
3answers
1k views

How many digits can be removed from a multiplication puzzle and still give only one answer?

There's a common category of mathematical puzzle which involves determining missing numbers in a long multiplication problem. As an example from this site (problem 10): ...