CalcAnyway · Examples
Examples
"How would you build this calculation?", answered with a board you can actually move.
Every article has a working CalcAnyway board embedded in it. You can change the numbers as you read and check what the text says.
Changes made in the page are not saved. To carry on with your own numbers, press "Open in CalcAnyway" first and edit there — that copy can be saved and shared as a URL.
Categories
Study
Fractions, area, rounding, units, data, concentration, levers, circuits — the places that are easy to get wrong.
Money 日本語
Trips, buying a home, running a car, education. Written in Japanese, because the costs and the rules are Japanese.
Latest
Balancing a lever
Study — The heavier side does not always go down. 60 g × 20 cm balances 40 g × 30 cm.
Concentration of a salt solution
Study — Divide the salt by the whole solution, not by the water. Add water and the denominator alone grows.
Reading data: a line, a histogram and the median
Study — Push one score to an extreme and the mean moves while the median holds.
Converting units
Study — Multiply or divide? Keep the factor in the formula and the direction stays visible.
Rounding a number off
Study — One 34,567, four answers — depending on which place you keep and which method you use.