Homework Help is Here – Start Your Trial Now!
Math
Advanced Math
9. Here is Marco's method for calculating 38 X 60: boislene 4 times 6 is 24, so 40 times 60 is 2400. Then qinlend 2 times 6 is 12, so it's 2400 – 120, which is 2280. - Write equations that incorporate Marco's method and that also show why his method is valid. Write your equations in the following form: 38 X 60 = some expression = some expression rewrite = 2280 ori Which properties of arithmetic did Marco use (knowingly or not), and where? wod

9. Here is Marco's method for calculating 38 X 60: boislene 4 times 6 is 24, so 40 times 60 is 2400. Then qinlend 2 times 6 is 12, so it's 2400 – 120, which is 2280. - Write equations that incorporate Marco's method and that also show why his method is valid. Write your equations in the following form: 38 X 60 = some expression = some expression rewrite = 2280 ori Which properties of arithmetic did Marco use (knowingly or not), and where? wod

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
See similar textbooks
icon
Related questions
Question
**Marco's Method for Calculating 38 × 60** Marco's method involves breaking down the multiplication of 38 by 60 using the following steps: 1. **Break Down:** - Calculate \(4 \times 6 = 24\), so \(40 \times 60 = 2400\). - Calculate \(2 \times 6 = 12\), so subtract from 2400: \(2400 - 120 = 2280\). 2. **Write Equations:** - Write equations to show Marco's method and its validity. - Use the following form: - \(38 \times 60 = \text{some expression}\) - \(= \text{some expression}\) - \(... \) - \(= 2280\) 3. **Discuss Properties of Arithmetic:** - Identify which arithmetic properties Marco used (knowingly or unknowingly) and where he applied them.
Transcribed Image Text:**Marco's Method for Calculating 38 × 60** Marco's method involves breaking down the multiplication of 38 by 60 using the following steps: 1. **Break Down:** - Calculate \(4 \times 6 = 24\), so \(40 \times 60 = 2400\). - Calculate \(2 \times 6 = 12\), so subtract from 2400: \(2400 - 120 = 2280\). 2. **Write Equations:** - Write equations to show Marco's method and its validity. - Use the following form: - \(38 \times 60 = \text{some expression}\) - \(= \text{some expression}\) - \(... \) - \(= 2280\) 3. **Discuss Properties of Arithmetic:** - Identify which arithmetic properties Marco used (knowingly or unknowingly) and where he applied them.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,
SEE MORE TEXTBOOKS