Question

3. Определи порядок действий. Вычисли, записывая действия стол- биком. a) 1000-187-4+77-8 184-5-816:3+248 6) 750:2+317 580 : 4 + 209 87-8:2-199 (348 +97) -365:5 670:5+(76 +376) 115-8+77 (701-36)- 660:5 1000-390:2​

Answer 1

Ответ:

там не хватило Я продолжила)

Answer 2

To solve the given arithmetic expression, let's break it down step by step:

a) 1000 - 187 - 4 + 77 - 8 + 184 - 5 - 816 ÷ 3 + 248 + 6

First, let's perform the division: 816 ÷ 3 = 272

Now, let's substitute the result back into the expression:

1000 - 187 - 4 + 77 - 8 + 184 - 5 - 272 + 248 + 6

Next, let's perform the addition and subtraction from left to right:

1000 - 187 = 813 813 - 4 = 809 809 + 77 = 886 886 - 8 = 878 878 + 184 = 1062 1062 - 5 = 1057 1057 - 272 = 785 785 + 248 = 1033 1033 + 6 = 1039

Therefore, the value of the expression is 1039.

b) 750 ÷ 2 + 317 + 580 ÷ 4 + 209 + 87 - 8 ÷ 2 - 199 + (348 + 97) - 365 ÷ 5 + 670 ÷ 5 + (76 + 376) + 115 - 8 + 77 + (701 - 36) - 660 ÷ 5 + 1000 - 390 ÷ 2

Let's solve this expression step by step:

750 ÷ 2 = 375 580 ÷ 4 = 145 8 ÷ 2 = 4 365 ÷ 5 = 73 660 ÷ 5 = 132 390 ÷ 2 = 195

Now, let's substitute the results back into the expression:

375 + 317 + 145 + 209 + 87 - 4 - 199 + (348 + 97) - 73 + 670 ÷ 5 + (76 + 376) + 115 - 8 + 77 + (701 - 36) - 132 + 1000 - 195

Next, let's perform the addition and subtraction from left to right:

375 + 317 = 692 692 + 145 = 837 837 + 209 = 1046 1046 + 87 = 1133 1133 - 4 = 1129 1129 - 199 = 930 930 + (348 + 97) = 1375 1375 - 73 = 1302 1302 + 670 ÷ 5 = 1434 1434 + (76 + 376) = 1886 1886 + 115 = 2001 2001 - 8 = 1993 1993 + 77 = 2070 2070 + (701 - 36) = 2735 2735 - 132 = 2603 2603 + 1000 = 3603 3603 - 195 = 3408

Therefore, the value of the expression is 3408.

I hope this helps! Let me know if you have any further questions.