DAY 126 at 7puzzleblog.com

Today’s Challenge

In your purse or pocket, you have six each of 7puzzleland’s brand-new 4p and 7p coins. Try and make the various amounts from 20p upwards with these coins.

As shown here, the first few have been done for you:

  • 20p can be made from 5 × 4p coins,
  • 21p from 3 × 7p coins,
  • 22p from 2 × 7p coins and 2 × 4p coins . . .

What is the lowest amount that is impossible to make from your twelve coins?

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Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 125 at 7puzzleblog.com

Today’s Challenge

Using the numbers 3, 4 and 5 just once each, and with + – × ÷ available, only four of the numbers on the list below are possible to achieve. Which ones are they?

1     3     6     9     10     12     15     18     21     24     27     30

Full details of our popular arithmetic & strategy board game can be found at it’s own dedicated webpage, mathematicallypossible.com.

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Answers

. . . can be found when clicking this.

7puzzleblog

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Welcome

the7puzzlecompanyA warm welcome to 7puzzleblog.com, the World’s Top Daily Number Puzzle Website – and home to the 7puzzle company.

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, so start your numerical adventure by having a go at solving our latest number puzzle shown above – and improve your number & logic skills too!

Our bumper compendium of challenges at 7puzzleblog.com contains a different number puzzle every day, with the added bonus of having an additional three number puzzles daily from January 1, DAY 1, to March 25, DAY 85; 255 extra challenges which are perfect for revision purposes.  These are related to our signature board game, the 7puzzle game, and a superb resource for teachers and parents to utilise with the children!

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.

Spread the message about our fabulous daily number puzzles at 7puzzleblog.com to family, friends, students and colleagues.  Answers are provided and 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 following bullet points describes an educational activity the 7puzzle company is currently involved in:

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 the innovative PuzzleFriday concept and recommend all schools to invest in our 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 124

Today’s Challenge

The playing board of the 7puzzle game contains 49 different numbers, the lowest being 2 and the highest 84. There are seven rows, with each row consisting of seven numbers.

The 2nd & 5th rows of the board contain the following fourteen numbers:

6     7     8     16     17     21     28     48     50     55     63     64     81     84

From the above numbers:

  1. What is the total when adding together all the multiples of 6?
  2. Find the difference between the two prime numbers.
  3. Which two numbers, when 17 are added to each, become square numbers?
  4. List FOUR different numbers that total 100.

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Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 123

Today’s Challenge

Follow the rules and eliminate numbers from a given list, until just one remains.  From all the numbers 1-30, delete:

  • multiples of 5
  • factors of 36
  • numbers containing a ‘7’
  • prime numbers
  • even numbers

What is the only number left?

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Answers

. . . can be found when clicking this.

7puzzleblog

 

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DAY 122

Today’s Challenge

Do you know your 3- and 5-times tables?  Find the sum of the first SEVEN whole numbers that has a 3 or 5 as part of their number OR are multiples of 3 or 5.

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Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 121

Today’s Challenge

Read the two facts below about a particular number:

  • I am a 2-digit even number,
  • When my two digits are added together, they make another 2-digit even number that is also a square number.

Which number am I?

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Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 120

Today’s Challenge

This 5puzzle-related question is similar to the board game and app of the same name.

Your task is to make the target number of 10 by adding together five numbers. You are limited to using 1 to 5, but these can be used any number of times.

One such way of making 10 is 5+2+1+1+1, but can you find the FIVE other ways?

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Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 119

Today’s Challenge

Using the numbers 3, 6 and 6 just once each, and with + – × ÷ available, which three of the following target numbers are NOT mathematically possible to achieve:

1     2     3     4     6     8     9     12     15     18     21     24

This is from our innovative board game, the possible game, and details can be found by visiting the game’s own dedicated webpage at mathematicallypossible.com.

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Answers

. . . can be found when clicking this.

7puzzleblog

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