Wiki Page, Math 13 - Perez Sandbox : Calculator Keystrokes

Wiki Page
2026-01-17T21:14:52-08:00

Module 17

Example:

Calculator keystrokes to calculate the standard error

Basic Calculator

Input (keystrokes)

1 − 0.10 =

× 0.10 =

÷ 100 =

=

Output (display)

0.9

0.09

0.0009

0.03

Why

Inside parentheses first

Numerator and denominator first

Then divide the fraction

Outside last

Scientific Calculator

Input (keystrokes)

0.10 × (1 − 0.10) ÷ 100 =

=

Output (display)

0.0009

0.03

Why

Inside first

Outside last