# The Four 4s Problem The object at this exercise is to create mathematical expressions that use exactly four 4s and that simplify to a counting number from 1 to 20, inclusive. You are allowed to use the following mathematical symbols: + , − , × , ÷ , , ( , a n d ) . For example, 4 4 + 4 4 = 2 , 4 ( 4 − 4 ) + 4 = 5 4 − 4 + 4 × 4 = 18

### Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
Publisher: Cengage Learning
ISBN: 9781305965584

### Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
Publisher: Cengage Learning
ISBN: 9781305965584

#### Solutions

Chapter
Section
Chapter 1.3, Problem 49ES
Textbook Problem
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## The Four 4s Problem The object at this exercise is to create mathematical expressions that use exactly four 4s and that simplify to a counting number from 1 to 20, inclusive. You are allowed to use the following mathematical symbols: + , − , × , ÷ , , ( , a n d ) . For example, 4 4 + 4 4 = 2 , 4 ( 4 − 4 ) + 4 = 5 4 − 4 + 4 × 4 = 18

Expert Solution
To determine

To create:

Mathematical expressions that use exactly four 4s whose simplification gives number from 1 to 20.

### Explanation of Solution

Given information:

Mathematical symbols which are allowed to use are: +,,×,÷,,(,and).

Expressions:

4×44+4=6

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