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Mixed operators, also known as mixed arithmetic operations, refer to mathematical expressions that involve a combination of different types of operators or operations within a single expression. These operations can include addition (+), subtraction (-), multiplication (*), division (/), and sometimes exponentiation (^) or other mathematical functions.

In a mixed operator expression, you may encounter a variety of mathematical symbols or operations used together to perform calculations. The order of operations, which dictates the sequence in which different operations should be carried out, is crucial in solving such expressions.

Here's an example of a mixed operator expression:

1: Mixed Operators

\[2 + 3 * 4 - \frac{10}{2}\]

In this expression:

\(2 + 3\) is addition.
\(3 * 4\) is multiplication.
\(\frac{10}{2}\) is division.

The order of operations (typically remembered using the acronym PEMDAS/BODMAS, which stands for Parentheses/Brackets, Exponents/Orders, Multiplication and Division, and Addition and Subtraction) guides how you evaluate this expression:

1. Perform multiplication: \(3 * 4 = 12\).
2. Perform division: \(\frac{10}{2} = 5\).
3. Now, the expression becomes: \(2 + 12 - 5\).
4. Perform addition and then subtraction: \(2 + 12 = 14\), and \(14 - 5 = 9\

2 :Mixed Fractions

Certainly! Here are seven lines about mixed fractions suitable for students in class 4 or 5:

1. Mixed fractions are numbers that have both a whole part and a fractional part.

2. They are written in the form of a whole number followed by a proper fraction.

3. For example, \(3 \frac{1}{2}\) is a mixed fraction, where \(3\) is the whole number, and \(\frac{1}{2}\) is the fractional part.

4. To add or subtract mixed fractions, we need to find a common denominator for the fractional parts.

5. We can convert mixed fractions to improper fractions to make calculations easier.

6. For multiplication and division, we can multiply or divide the whole number by the fraction separately.

7. Mixed fractions are helpful in real-life situations, such as measuring and sharing quantities that are not whole numbers.