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Human calculator! You add the sum of four bars rolled like dice 4 four digit numbers, fast than your spectator can type the first few digits on a calculator. Repeat over and over again. You can even you predict the sum on the opposite side! Read more..
You become a human computer that can add faster than someone with a calculator.
You show four square metal logs each with four different numbers on all four sides. Sixteen numbers per log. Your spectator is instructed to roll them out like dice and assemble them any order they choose. Then to total the numbers up on a calculator. Four, four digit number. You reveal the sum before your spectator has managed to enter the first few numbers. Repeat as often as you desire. Each sum will be different! There are a total of 6,144 different answers when using all four logs.
In fact. if you wanted to, you could perform this with 1, 2, 3 and then 4 logs to build on your routine.
This improved version will even allow you to present this as a feat of mentalism, by predicting the sum even before the numbers are seen by you or your spectators! For this presentation the spectator rolls out the log and assembles them. You then write the sum on a piece of paper. Ask your spectator is turn the logs over and add the numbers on the opposite side! They of course match what you have previously written down.
Quality made anodized aluminum rods (color may vary by set) with engraved numbers that will never wear off. Beautiful props. Great self-working trick!