# Monthly Archives: June 2021

## day/dydd 181 at 7puzzleblog.com

The Main Challenge Your task is to arrive at the target numbers 66, 77, 88 and 99 by using the five numbers 1, 2, 3, 4 and 5 once, and with + – × ÷ available in each calculation. The 7puzzle … Continue reading

## day/dydd 180 at 7puzzleblog.com

The Main Challenge This is a continuation of a number puzzle, posted on DAY 10, made famous by French writer, George Perec. In that challenge, we asked you to use seven 7’s (7, 7, 7, 7, 7, 7 and 7) once … Continue reading

## day/dydd 179 at 7puzzleblog.com

The Main Challenge You must make all three lines work out arithmetically by inserting the twelve digits 0 1 1 2 2 3 4 4 5 6 8 and 8 into the gaps below: ◯  +  ◯   =    6 … Continue reading

## day/dydd 178 at 7puzzleblog.com

The Main 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? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 … Continue reading

## day/dydd 177 at 7puzzleblog.com

The Main Challenge You must try and make all three lines work out arithmetically by inserting the twelve digits 0 0 1 1 2 3 3 4 5 6 6 and 7 into the gaps: ◯  +  ◯   = … Continue reading

## day/dydd 176 at 7puzzleblog.com

The Main Challenge You have been given the arduous task of manually numbering a 100-page document from 1 to 100. What is the total of all the individual digits written? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid … Continue reading

## day/dydd 175 at 7puzzleblog.com

The Main Challenge Three people answered the same four multiple choice problems. They had a choice of A, B or C for each question. Their responses are shown here: Timmy:    A  B  B  C Tammy:   A  C  B  A … Continue reading

## day/dydd 174 at 7puzzleblog.com

The Main Challenge Read the facts below: I am a 2-digit number, I am a multiple of 7, The difference between my two digits is 4. Which number am I? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 … Continue reading