Hey there, math enthusiasts and problem – solvers! In a world where calculators are just a click or tap away, we’re throwing down the gauntlet. This challenge is all about relying on your brainpower, not your device. No shortcuts, no easy outs—just pure, unadulterated mental arithmetic!
So, for this task, leave that calculator in your bag, close that app on your phone, and let your mind take the driver’s seat. Whether you’re a seasoned math whiz or just starting to explore the world of numbers, this is your chance to prove what you’re made of. Are you ready to rise to the occasion and show off your mental math skills? Let the challenge begin!
Ready to see the answer?
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Answer:
- According to the order of arithmetic operations, calculate multiplication and division first：In an arithmetic expression without parentheses, perform multiplication and division operations first. Multiplication and division are calculated from left to right. First, calculate the division: 18÷6=3, and the original expression becomes 3+3×3.
Then, calculate the multiplication: 3×3=9, and the expression becomes 3+9. - Finally, calculate the addition：3+9=12.
So, 3+18÷6×3=12.