Question

12*31-842*72-934*53-1322*16=?​

Answer 1

Ответ:

1. 12*31-8 = 364

1) 12*31 = 372

2) 372-8 = 364

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2. 42*72-9 = 3.015

1) 42*72 = 3.024

2) 3.024-9= 3.015

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3. 34*53-13 = 1.789

1) 34*53= 1.802

2) 1.802-13=1.789

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4. 22*16 = 352

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Answer 2

To calculate the value of the expression 12 * 31 - 842 * 72 - 934 * 53 - 1322 * 16, we can perform the multiplications first and then subtract the results. Let's calculate it step by step:

12 * 31 = 372 842 * 72 = 60,624 934 * 53 = 49,402 1322 * 16 = 21,152

Now, let's substitute these values back into the expression:

372 - 60,624 - 49,402 - 21,152

Performing the subtractions:

= -130,806

Therefore, the value of the expression 12 * 31 - 842 * 72 - 934 * 53 - 1322 * 16 is -130,806.