7puzzleblog.com

the7puzzlecompanyWelcome to 7puzzleblog.com, the World’s Top Daily Number Puzzle Website.

We do many mathematical things at the 7puzzle company, one of which is to design and produce daily number puzzles for our many followers from over 150 different countries and territories around the world.  Our aim is to help improve people’s basic knowledge and confidence of number and arithmetic in a fun way.  We are also very interested in how our challenges are being utilised worldwide, so we’d really appreciate it if you could let us know.

From 2016, our bumper compendium of challenges at 7puzzleblog.com contain four number puzzles for every day of the year.  Three of these are related to our signature game, the 7puzzle game, but all are superb in improving number skills and when used as a revision tool for mathematics/numeracy tests or exams.

Click on the dates below to access our number puzzles and we will reply to all comments and answers received as well as tweets to @7puzzle and e-mails to paul@7puzzle.com.

Enjoy your visit to 7puzzleblog.com and spread the message about our fabulous daily number puzzles to family, friends, students and colleagues.  Answers can be found here!

To find out more about the 7puzzle company, simply click this link.

Paul Godding       Owner, the 7puzzle company

7puzzleblog

January/Ionawr/Enero/Janeiro/Janvier/Eanáir/Gennaio

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30       31

February/Chwefror/Febrero/Fevereiro/Février/Feabhra/Febbraio

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29

March/Mawrth/Marzo/Março/Mars/Márta/Marzo

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30       31

April/Ebrill/Abril/Abril/Avril/Aibreán/Aprile

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30

May/Mai/Mayo/Maio/Mai/Bealtaine/Maggio

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30       31

June/Mehefin/Junio/Junho/Juin/Meitheamh/Guigno

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30

July/Gorffennaf/Julio/Julho/Juillet/Iúil/Luglio

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30       31

August/Awst/Agosto/Agosto/Août/Lúnasa/Agosto

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30       31

September/Medi/Septiembre/Setembro/Septembre/MeánFómhair/Settembre

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30

October/Hydref/Octubre/Outubro/Octobre/DeireadhFómhair/Ottobre

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30       31

November/Tachwedd/Noviembre/Novembro/Novembre/Samhain/Novembre

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30

December/Rhagfyr/Diciembre/Dezembro/Décembre/Nollaig/Dicembre

1        2        3        4        5        6        7        8

9       10       11       12       13       14       15       16

17       18       19       20       21       22       23       24

25       26       27       28       29       30       31

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. . . and there’s more!

As well as the many hundreds of number challenges here at 7puzzleblog.com, each of the bullet points below describe the educational activities the 7puzzle company is currently involved in.

Click these links to gather full details:

The main objective of the 7puzzle company is to spread the message about the positive impact games & puzzles can have in the classroom, and thus help to improve the maths skills of children everywhere.

We are able to do this successfully through our innovative PuzzleFriday concept and recommend all schools to invest in the tried and tested packs of resources.

Please feel free to follow my tweets at @7puzzle or get in touch by e-mail at paul@7puzzle.com.

7puzz

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DAY 39

Today’s Challenge

By allocating each letter of the English alphabet a numerical value as follows; A=1  B=2  C=3 . . . Z=26, the value of the word CAT would be 24, which is calculated by doing 3+1+20.  Following this rule, what would be the value of the word ‘ARITHMETIC’?

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The 7puzzle Number Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 5th & 7th rows of the playing board contain the following fourteen numbers:

2     3     9     10     14     15     22     32     35     40     44     54     60     72

From the list:

  1. What is the sum of the factors of 40?
  2. What is the difference between the two multiples of 7?
  3. How many pairs of numbers have a sum of 75?

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Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 38

Today’s Challenge

Using all six numbers 3, 6, 25, 50, 75 and 100 exactly once each, with + – × ÷ available, show how you can arrive at the target answer of 952.

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The 7puzzle Number Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 5th & 7th rows of the playing board contain the following fourteen numbers:

2     3     9     10     14     15     22     32     35     40     44     54     60     72

From the list:

  1. What is the sum of the multiples of 6?
  2. Which pair of numbers have a difference of 9?
  3. Which two numbers, when 9 are added to them, become square numbers?

.

Answers

. . . can be found when clicking this.

7puzzleblog

 

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DAY 37

Today’s Challenge

If you add 1+4, then to that answer add 9, then keep on adding consecutive square numbers to the previous total, what is the first answer you reach that is greater than 200?

(Hint: Square numbers are 1×1=1, 2×2=4, 3×3=9, and so on)

.

The 7puzzle Number Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 5th & 7th rows of the playing board contain the following fourteen numbers:

2     3     9     10     14     15     22     32     35     40     44     54     60     72

From the list:

  1. What is the sum of the factors of 30?
  2. How many square numbers are present?
  3. Find three pairs of numbers that have a sum of 54.

.

Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 36

Today’s Challenge

Using the three numbers 2, 3 and 4 just once each, with + – × ÷ available to you, what is the lowest positive number it is NOT mathematically possible to make?

.

The 7puzzle Number Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 5th & 7th rows of the playing board contain the following fourteen numbers:

2     3     9     10     14     15     22     32     35     40     44     54     60     72

From the list:

  1. What is the sum of the multiples of 5?
  2. How many multiples of 4 are present?
  3. Which three different numbers have a sum of 100?

.

Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 35

Today’s Challenge

Try the following 20-steps in your head.  If you start with the number 12, then:

÷2     1     ×5     5     ×3     6     ÷2     3     ÷3     ×2

10     +6     ×3     6     ÷2     +3     ÷3     +2     –4     ×6     =     ?

What is your final answer?

.

The 7puzzle Number Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 5th & 7th rows of the playing board contain the following fourteen numbers:

4     6     7     11     16     21     24     27     30     50     70     77     81     84

From the list:

  1. What is the sum of the even numbers?
  2. Which two numbers, when added, make another number on the list?
  3. Which four different numbers have a sum of 100?

.

Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 34

Today’s Challenge

Can you replace all 12 ?’s in the Addition-only Mathelona puzzle below:

?    +    ?    =    ?
?    +    ?    =    ?
?    +    ?    =    ?
?    +    ?    =    ?

with the following 12 numbers so that all four lines work out arithmetically?

1     1     2     3     4     4     5     5     6     8     9     10

.

The 7puzzle Number Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 5th & 7th rows of the playing board contain the following fourteen numbers:

4     6     7     11     16     21     24     27     30     50     70     77     81     84

From the list:

  1. What is the sum of the multiples of 7?
  2. Which two pairs of numbers both have a difference of 11?
  3. Which number, when multiplied by 5, has its result also present on the list?

.

Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 33

Today’s Challenge

Using the three numbers 3, 6 and 9 just once each, with + – × ÷ available to you, THREE of the following target numbers are not possible to make. What is the sum of these three numbers?

3     6     9     12     15     18     21     24     27     30     33     36

.

The 7puzzle Number Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 5th & 7th rows of the playing board contain the following fourteen numbers:

4     6     7     11     16     21     24     27     30     50     70     77     81     84

From the list:

  1. What is the sum of the factors of 42?
  2. What is the difference between the two prime numbers?
  3. Find three different numbers that have a sum of 77.

.

Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 32

Today’s Challenge

Apart from 951 (or 9+5+1), find the seven other ways you can make 15 when combining and adding together 3 UNIQUE digits from 1-9.

.

The 7puzzle Number Challenge

The playing board of the 7puzzle game is a 7-by-7 grid containing 49 different numbers, ranging from up to 84.

The 5th & 7th rows of the playing board contain the following fourteen numbers:

4     6     7     11     16     21     24     27     30     50     70     77     81     84

From the list:

  1. What is the sum of the multiples of 4?
  2. How many square numbers are there?
  3. Find three different numbers that have a sum of 100.

.

Answers

. . . can be found when clicking this.

7puzzleblog

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