Monthly Archives: March 2018

DAY 81:

Today’s Challenge Carry out the following 15-step number trail – with no calculator! Start with 20, then: +1  ÷3  ×5  –7  +2  ÷6  +4  –1  ×3  ÷4  +4  –5  ×1  +3  ×6  =  ? What is your final answer? The 7puzzle Challenge The playing board … Continue reading

DAY 80:

Today’s 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  B:9–2 … Continue reading

DAY 79:

Today’s 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 added … Continue reading

DAY 78:

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

DAY 77:

Today’s 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 76:

Today’s 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 instance, … Continue reading

DAY 75:

Today’s 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 7-by-7 … Continue reading

DAY 74:

Today’s 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 of 49 … Continue reading