Simplify: 4 + 3 times 7.
A25
B49
C21
D28
Answer & Solution
Correct answer: A. 25
1. Check for parentheses or exponents in 4 + 3 times 7: there are none.
2. Multiplication and division come next, so multiply 3 times 7 to get 21.
3. Finish with addition: 4 plus 21 equals 25.
4. Adding 4 and 3 first, before multiplying, is the classic order of operations mistake that gives the wrong total of 49.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 1 "Foundations", section 1.2 Use the Language of Algebra_
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