Solve this “math” problem without using a calculator!

Brain – Busting Challenge: Crack This Math Problem WITHOUT a Calculator!

Hey, math whizzes and mental – muscle flexers! Get ready to put your noggin to the ultimate test. We’ve got a seriously tricky math problem that’s going to push your arithmetic skills, logical thinking, and mental agility to the limit. And here’s the kicker: no calculators allowed! That’s right, we’re going old – school, relying solely on your brainpower, quick thinking, and tried – and – true math knowledge.

So, roll up your sleeves, clear your mind, and get ready to take on this epic math challenge. The problem is waiting, and the glory of solving it without a calculator is yours for the taking. Are you up for it? Let the mental math showdown begin!

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Answer：

1. According to the order of arithmetic operations, calculate the multiplication first：In arithmetic operations, multiplication and division are calculated first, followed by addition and subtraction. So first calculate 70×0=0, and the original expression becomes 40+40−0+20+10.
2. Then calculate the addition and subtraction in sequence：Calculate in order from left to right. 40+40=80, 80−0=80, 80+20=100, 100+10=110.

So, 40+40−70×0+20+10=110.