DAY 182

Today’s Challenge

A number puzzle based on my fun & challenging number puzzle app, MATHELONA.

Can you replace the 12 ?’s below with 0, 1, 1, 2, 3, 4, 5, 5, 6, 7, 9 and 9 so that all three lines work out arithmetically?

?  +  ?    =     4     =    ?  –  ?
?  +  ?    =    18    =    ?  ×  ?
?  +  ?    =     7     =    ?  ÷  ?

To play similar number puzzles on your iPhone or iPad, click MATHELONA for details.

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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

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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

7puzz

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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 181

Today’s Challenge

Your task is to find a way of arriving at the target number of 70 by using each of the five numbers 1, 2, 3, 4 and 5 once only, with + – × and ÷ available.

One way is [(4 × 3) + 2] × 5 × 1 = 70, can you find another?

.

Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 180

Today’s Challenge

This is a continuation of a number puzzle posted on DAY 10, made famous by French writer George Perec, where the numbers 1-3 were the targets.

For instance, to carry on the pattern and make 4, you could simply do:

  • 7 – [(7÷7) + (7÷7) + (7÷7)] = 4

We now invite you to use seven 7′s (7, 7, 7, 7, 7, 7 and 7) once each, with + – × and ÷ available, to make all the target numbers from 5 to 9.

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Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 179

Today’s Challenge

Simply multiply two numbers together, then either add or subtract a third number to arrive at your target answer, which today is 60.

Using the formula (a × b) ± c, where a b and c are digits from 1-9, there are four ways of arriving at the answer of 60. One way is (9 × 6) + 6, but can you find the THREE other ways?  In this particular challenge, a number can be used more than once in a calculation.

[Note:  (9 × 6) + 6 = 60  and  (6 × 9) + 6 = 60  counts as just ONE way]

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Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 178

Today’s Challenge

Can you arrive at the target answer of 7 by using each of the numbers 0.2, 0.5, 2 and 2.5 exactly once each, and with +  × ÷ available?

.

Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 177

Today’s Challenge

If you enjoy this Bronze Medal challenge, click MATHELONA for further details.

You must make all three lines work out arithmetically by replacing the 12 ?’s below with digits 0-9.  Each digit can only be inserted a maximum of TWICE:

?   +   ?    =     8     =     ?   –   ?
?   +   ?    =     5     =     ?   ×   ?
?   +   ?    =     6     =     ?   ÷   ?

.

Answers

. . . can be found when clicking this.

7puzzleblog

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DAY 176

Today’s Challenge

Similar to DAY 175, but this one tests your subtracting skills.

Start with the number 7, then subtract 0.2, then subtract 0.4 from that answer, then 0.6 and keep on taking away consecutive multiples of 0.2 from the previous total.

What is the last positive answer you will have before the answer becomes negative?

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Answers

. . . can be found when clicking this.

7puzzleblog

 

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DAY 175

Today’s Challenge

Start with the number 7, then add 0.2, then to that answer add 0.4, then 0.6 . . . and keep on adding consecutive multiples of 0.2 to the previous total.

What is the first answer you reach that is greater than 16?

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Answers

. . . can be found when clicking this.

7puzzleblog

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