Answered: Describe a way (using equations) that…

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

See similar textbooks

Related questions

Question

Describe a way (using equations) that you could calculate 602 – 78 mentally without using the standard paper-and-pencil algorithm.

Expert Solution

Step 1

from the first impression of the question, the strategy I use to solve mental maths by rounding the fig. to their nearest zero and perform the operation and then deal with the rest.

Like here if first change the values to 600 and 80. then perform the subtraction as 600-80=520, very simple and intuitive.

now when we see the original values the unit place values differ by +2-(-2)=4. so we add this to the result. and we will get our final answer as 524.

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Complexity$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.

Similar questions