How to use a calculator Try to type in your calculator as written 25 = 25 = 5 Try to type in your calculator as written You want to use the same calculator everyday. My calculator uses an (equal, enter) button. To solve, I must punch (number, ) first and then the (number, ). Physics 103 Pt 2

Calculators follow the Mathematical Order of Operation Please Excuse My Dear Aunt Sally Parenthesis Exponents Multiply and Divide Add and Subtract A calculator sees the problem “2 + 4 x 6 = ___ as “2 + (4 x6) = 26” because multiplying is done first. Physics 103 Pt 2

To make the calculator add first, I must: Calculators follow the order of mathematical operation unless told otherwise. Use parenthesis (2 + 4) or press = or ENTER after 2 + 4 To calculate, punch “10 (x, ÷) 2, then (x, ÷) 5” 10 2 x 5 Physics 103 Pt 2

2 + 42 = (36, 18) because (adding, squaring) is performed first. 1 km ? km = 6000 cm x x = 2 + 42 = (36, 18) because (adding, squaring) is performed first. Single variable functions are always performed first in a calculator. x2, , yx, sin, cos, tan, log, EE, x-1, Λ To calculate “log 100 = ___”, I must type (100, log) first. Depends on calculator! 0.06 km 100 cm 1000 m Physics 103 Pt 2

Practice Calculation 200 + [2 x (4 + 6)]3= 8200 Physics 103 Pt 2