The Human Calculator


Scott Flansburg is in the Guinness Book of World Records as the “Fastest Human Calculator.” Flansburg correctly added a randomly selected two-digit number (38) to itself 36 times in 15 seconds without the use of a calculator. Flansburg shares his gift and love of math with children all around the world. He joins Chicago Tonight to put our own calculator to the test.

Flansburg devised a matrix grid system to help visualize patterns based on the number 9. He's turned that into a coloring book.

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