Simplifying Expressions without the Aid of a Calculator

Oct 13, 2025 by windailys.com 85 views

Introduction

Mathematics is a fundamental subject that plays a crucial role in our daily lives. It is used in various fields such as science, technology, engineering, and mathematics (STEM), economics, finance, and many more. In this article, we will focus on solving mathematical expressions, specifically the square root of a number, and simplifying expressions without the aid of a calculator.

Between which two consecutive integers does $\sqrt{271}$ lie?

To find the two consecutive integers between which $\sqrt{271}$ lies, we need to find the square root of 271.

$\sqrt{271} = 16.43$

Since $\sqrt{271}$ is a decimal number, we need to find the two consecutive integers between which it lies. The two consecutive integers are 16 and 17.

Therefore, $\sqrt{271}$ lies between the two consecutive integers 16 and 17.

Simplifying Expressions without the Aid of a Calculator

Simplifying expressions without the aid of a calculator requires a good understanding of mathematical operations and rules. In this section, we will simplify two expressions without the aid of a calculator.

1.3.1. $(3.6 \times 10^6) - (5.2 \times 10^5)$

To simplify this expression, we need to follow the order of operations (PEMDAS):

Multiply 3.6 by $10^6$
Multiply 5.2 by $10^5$
Subtract the result of step 2 from the result of step 1

$(3.6 \times 10^6) = 3,600,000$

$(5.2 \times 10^5) = 52,000$

Now, subtract the result of step 2 from the result of step 1:

$3,600,000 - 52,000 = 3,548,000$

Therefore, the simplified expression is $3,548,000$ .

1.3.2. $\frac{1}{2} + 2\frac{3}{4}$

To simplify this expression, we need to follow the order of operations (PEMDAS):

Convert the mixed number to an improper fraction: $2\frac{3}{4} = \frac{11}{4}$
Add the two fractions: $\frac{1}{2} + \frac{11}{4}$

To add these fractions, we need to find a common denominator, which is 4.

$\frac{1}{2} = \frac{2}{4}$

Now, add the two fractions:

$\frac{2}{4} + \frac{11}{4} = \frac{13}{4}$

Therefore, the simplified expression is $\frac{13}{4}$ .

Conclusion

Solving mathematical expressions and simplifying expressions without the aid of a calculator requires a good understanding of mathematical operations and rules. In this article, we have solved the square root of a number and simplified two expressions without the aid of a calculator. We have also discussed the importance of following the order of operations (PEMDAS) and finding a common denominator when adding fractions.

Final Answer

The final answer to the first question is: $\boxed{16}$ and $\boxed{17}$ .

The final answer to the second question is: $\boxed{3,548,000}$ .

Introduction

Mathematics is a fundamental subject that plays a crucial role in our daily lives. It is used in various fields such as science, technology, engineering, and mathematics (STEM), economics, finance, and many more. In this article, we will provide answers to frequently asked questions related to solving mathematical expressions and simplifying expressions.

Q&A

Q: What is the square root of 271?

A: The square root of 271 is 16.43.

Q: Between which two consecutive integers does $\sqrt{271}$ lie?

A: $\sqrt{271}$ lies between the two consecutive integers 16 and 17.

Q: How do I simplify the expression $(3.6 \times 10^6) - (5.2 \times 10^5)$ without the aid of a calculator?

A: To simplify this expression, follow the order of operations (PEMDAS):

Multiply 3.6 by $10^6$
Multiply 5.2 by $10^5$
Subtract the result of step 2 from the result of step 1

$(3.6 \times 10^6) = 3,600,000$

$(5.2 \times 10^5) = 52,000$

Now, subtract the result of step 2 from the result of step 1:

$3,600,000 - 52,000 = 3,548,000$

Therefore, the simplified expression is $3,548,000$ .

Q: How do I simplify the expression $\frac{1}{2} + 2\frac{3}{4}$ without the aid of a calculator?

A: To simplify this expression, follow the order of operations (PEMDAS):

Convert the mixed number to an improper fraction: $2\frac{3}{4} = \frac{11}{4}$
Add the two fractions: $\frac{1}{2} + \frac{11}{4}$

To add these fractions, we need to find a common denominator, which is 4.

$\frac{1}{2} = \frac{2}{4}$

Now, add the two fractions:

$\frac{2}{4} + \frac{11}{4} = \frac{13}{4}$

Therefore, the simplified expression is $\frac{13}{4}$ .

Q: What is the order of operations (PEMDAS)?

A: The order of operations (PEMDAS) is a set of rules that tells us which operations to perform first when we have multiple operations in an expression. The acronym PEMDAS stands for:

Parentheses: Evaluate expressions inside parentheses first.
Exponents: Evaluate any exponential expressions next.
Multiplication and Division: Evaluate any multiplication and division operations from left to right.
Addition and Subtraction: Finally, evaluate any addition and subtraction operations from left to right.

Q: How do I find a common denominator when adding fractions?

A: To find a common denominator when adding fractions, we need to find the least common multiple (LCM) of the denominators. For example, if we have two fractions with denominators 4 and 6, the LCM of 4 and 6 is 12. We can then rewrite each fraction with a denominator of 12:

$\frac{1}{2} = \frac{6}{12}$

$\frac{11}{4} = \frac{33}{12}$

Now, we can add the two fractions:

$\frac{6}{12} + \frac{33}{12} = \frac{39}{12}$

Therefore, the simplified expression is $\frac{39}{12}$ .

Conclusion

Solving mathematical expressions and simplifying expressions without the aid of a calculator requires a good understanding of mathematical operations and rules. In this article, we have provided answers to frequently asked questions related to solving mathematical expressions and simplifying expressions. We have also discussed the importance of following the order of operations (PEMDAS) and finding a common denominator when adding fractions.

Final Answer

The final answer to the first question is: $\boxed{16}$ and $\boxed{17}$ .

The final answer to the second question is: $\boxed{3,548,000}$ .

The final answer to the third question is: $\boxed{\frac{13}{4}}$ .