# Monthly Archives: March 2019

## DAY/DYDD 80:

The Main Challenge Each of the nine letters, A-I, in the two sections below has a subtraction calculation attached to it. Which is the only letter that has the same answer in both sections? Section 1 C:24–13 G:14–6 D:20–10 E:15–7 I:14–9 F:18–11 … Continue reading

## DAY/DYDD 79:

The Main Challenge If each letter is assigned a value as follows, A=1 B=2 C=3 . . . Z=26, can you find a 7-letter word in the English language that has the value of 79 when the values of all seven letters are … Continue reading

## DAY/DYDD 78:

The Main Challenge Using the three numbers 5, 5 and 5 once each, with + – × ÷ available, which SEVEN target numbers from 1-30 are mathematically possible to achieve? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid of 49 … Continue reading

## DAY/DYDD 77:

The Main Challenge The two sections below both contain eight letters, A to H. Each letter has a calculation attached. Which is the only letter to have the SAME answer in BOTH sections? Section 1 E:8×3 B:30÷2 H:15+3 … Continue reading

## DAY/DYDD 76:

The Main Challenge It is possible to use seven 4’s (4 4 4 4 4 4 and 4) once each, together with the four operations + – × ÷, to make all the different target numbers 1, 2, 3 and 4. For … Continue reading

## DAY/DYDD 75:

The Main Challenge Start with the number 13, then follow these ten arithmetic steps: –2 +5 ÷2 ×5 –4 ÷9 +1 ×5 –1 ÷4 = ? What is your final answer? The 7puzzle Challenge The playing board of the 7puzzle game is a … Continue reading

## DAY/DYDD 74:

The Main Challenge Can you arrive at the target answer of 24 by using the digits 2, 9, 13 and 13 exactly once each and with + – × ÷ available? The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid … Continue reading

## DAY/DYDD 73:

The Main Challenge As well as 9+4+1, there are SEVEN other ways of making 14 when adding together three unique digits from 1-9. List these seven combinations. The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, ranging from 2 up … Continue reading

## DAY/DYDD 72:

The Main Challenge From the numbers 1 to 20 inclusive, find the only one that remains when all square numbers, multiples of 6, factors of 40 and odd numbers are eliminated. The 7puzzle Challenge The playing board of the 7puzzle game is a 7-by-7 grid of 49 different numbers, … Continue reading

## DAY/DYDD 71:

The Main Challenge Allocate each letter of the English alphabet a numerical value, A=1 B=2 C=3 . . . Z=26. When adding the individual letters, find the total value of these four important words: KNOWLEDGE HARD WORK RESILIENCE ATTITUDE If … Continue reading