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Simplify this expression by paying attention to the order of arithmetic operations which states that exponentiation precedes multiplication, division precedes addition and subtraction and that parentheses precede all of the above.
Thus, let's begin by simplifying the expressions within the parentheses, and following this, the multiplication between them.
Therefore, the correct answer is option C.
112
\( 140-70= \)
Because parentheses come first in PEMDAS! The parentheses group 12+2 together and 3+5 together. You must solve these groups completely before multiplying.
Remember PEMDAS: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction. Always work from left to right within each level!
Yes! You can solve first or first - both give the same final answer because multiplication is commutative.
Work backwards: 112 ÷ 8 = 14 and 112 ÷ 14 = 8. Since we got 14 from (12+2) and 8 from (3+5), our answer checks out!
Even one small error will give you the wrong final answer. That's why it's important to double-check each step: 12+2=14 and 3+5=8.
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