To solve the expression \(20 + \left(90 \div 2\right)\), we first perform the division inside the parentheses:

\[90 \div 2 = 45\]

Next, we add the result to 20:

\[20 + 45 = 65\]

Therefore, \(20 + (90 \div 2) = 65\).

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Here are some related questions for further practice:

1. \(30 + (80 \div 4) = ?\)
2. \(50 - (60 \div 3) = ?\)
3. \(100 \div 5 + 10 = ?\)
4. \(40 + (120 \div 6) = ?\)
5. \(25 + (75 \div 5) = ?\)
6. \(35 + (45 \div 3) = ?\)
7. \(60 - (30 \div 2) = ?\)
8. \(10 \times (80 \div 4) = ?\)

**Tip:** Always follow the order of operations (PEMDAS/BODMAS) when solving mathematical expressions: Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Learn how to solve the arithmetic expression 20 + (90 ÷ 2) with a detailed step-by-step solution. This problem covers basic arithmetic operations and follows the order of operations (PEMDAS/BODMAS). Suitable for students in Grades 5-7.

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