Читать книгу School RULES! Math - Emma MacLaren Henke - Страница 17
ОглавлениеClever Calculator
Use your calculator to perform math magic!
Favorite Number
1. Tell a friend to name her favorite number from 1 to 9.
2. Give your friend your calculator, and instruct her to multiply the number
she picked by 9.
3. Then tell her to multiply the result by 12,345,679 (the numbers 1 through 9
in order, without the 8).
4. Ask her to show you the calculator.
You both will see a 9-digit number in which every digit is
the number your friend selected. If she chose 3, for example,
the calculator will show 333333333.