Q1
In 3+4x2, following BODMAS gives:
A11
B14
C10
D24
CBSEClass 7 (CBSE)MathematicsCh 2 · Topic 1
Understanding Arithmetic Expressions
Learning to read and evaluate expressions with multiple operations.
Core concept
Understanding how to correctly read and interpret an expression before calculating is essential, since misreading the order of operations can lead to entirely wrong answers — for example, '3 + 4 × 2' is different from '(3+4) × 2', even though they look similar, because the placement of brackets changes which operation happens first. Arithmetic expressions form the foundation for algebra, where numbers are eventually replaced with variables representing unknown quantities.
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• An arithmetic expression combines numbers using +, -, ×, ÷ operations.
• Brackets indicate which operations should be performed first.
• '3+4×2' differs from '(3+4)×2' due to bracket placement changing the order of operations.
• Arithmetic expressions are the foundation for algebraic expressions using variables.