Select and carry out calculations in the correct order of precedence using the ‘rules’ of BODMAS (Brackets then Of then Division then Multiplication then Addition and Subtraction).
Part of Application of MathsNumeracy
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Calculate: \(3 \times (7 - 3)\)
BODMAS tells us that brackets come first, so we calculate:
\(3 \times (7 - 3) = 3 \times 4 = 12\)
Calculate \(2 + 3 \times 5 - 4\)
Did you get \(13\)? If not, remember that multiplication comes before addition and subtraction.
\(2 + 3 \times 5 - 4\)
\(= 2 + 15 - 4 = 13\)
Paula says that \(2 \times 3 - 2 \times 5 = - 4\)
Steve says the answer is \(10\). Who is right, and why?
Paula is correct. Multiplication comes before addition and subtraction, so:
\(2 \times 3 - 2 \times 5 = 6 - 10 = - 4\)