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We simplify this expression by observing the order of arithmetic operations which states that exponentiation precedes multiplication, division precedes addition and subtraction, and that parentheses precede everything else.
Therefore, we first start by simplifying the expression within the parentheses. We then multiply the result of the expression within the parentheses by the term that multiplies it:
Therefore, the correct answer is option C.
1242
\( 140-70= \)
Because the parentheses group everything together first! When you see (40+70+35-7)×9, the parentheses mean 'add and subtract these numbers first, then multiply the total by 9.'
Add the positive numbers first: 40+70+35 = 145, then subtract: 145-7 = 138. This keeps the arithmetic simple and reduces mistakes.
Break it down:
You'll get the wrong answer! For example, doing 40×9 first gives 360, but the correct answer is 1242. Always remember: parentheses come before everything else.
Yes! Remember PEMDAS: Parentheses, Exponents, Multiplication/Division (left to right), Addition/Subtraction (left to right). Some say 'Please Excuse My Dear Aunt Sally!'
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