Daily Archives: September 11, 2020

DAY/DYDD/GIORNO/NAP 255:

The Main Challenge Here’s a 2-part, 7-step number trail involving all four arithmetical operations. Part 1: When starting with the number 15, what is your final answer? –1 +2 ×3 ÷4 +5 –6 ×7 Part 2: In a separate calculation, … Continue reading

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