Question

280:7•14-354•890= 420:60•6+947•658= 4351•3-670•4= С Р О Ч Н О

Answer 1

Ответ:

13053-2680=10373

Пошаговое объяснение:

Answer 2

280:7×14-354×890=40×14-315060=
=560-315060=-314500

420÷60×6+947×658=42+623126=623168

4351×3-670×4=13053-2680=10373

Answer 3

Let's solve each of the expressions one by one:

280:7•14-354•890 = 280/(714) - 354890 (using the order of operations, i.e., multiplication and division before addition and subtraction) = 280/98 - 315660 = 2.857 - 315660 = -315657.143

420:60•6+947•658 = 420/(606) + 947658 (again, using the order of operations) = 420/360 + 623126 = 1.167 + 623126 = 623127.167

4351•3-670•4 = 43513 - 6704 = 13053 - 2680 = 10373

So the final answer is:

-315657.143, 623127.167, 10373