Question

(820：10+718)：400×39= 25×5：4 +145)：7+901= (547+53)：200+430：10= (73-18)×12+240：2= (12×20-221)×10+140= (65×10-597)×10-12= Помогите пожалуйста!!!

Answer 1

1)800:400×39=78
2)926,179
3) 600÷200+43=46
4)660+120=780
6)190+140=330
6)530-12=518

Answer 2

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

1. (820 + 10 + 718) ÷ 400 × 39 - First, perform the addition inside the parentheses: 820 + 10 + 718 = 1548. - Then, divide 1548 by 400: 1548 ÷ 400 = 3.87. - Finally, multiply 3.87 by 39: 3.87 × 39 = 150.93.

2. 25 × 5 ÷ 4 - Multiply 25 by 5: 25 × 5 = 125. - Then, divide 125 by 4: 125 ÷ 4 = 31.25.

3. (145 ÷ 7) + 901 - First, divide 145 by 7: 145 ÷ 7 = 20.71. - Then, add 20.71 to 901: 20.71 + 901 = 921.71.

4. (547 + 53) ÷ 200 + 430 ÷ 10 - First, perform the addition inside the parentheses: 547 + 53 = 600. - Then, divide 600 by 200: 600 ÷ 200 = 3. - Finally, divide 430 by 10: 430 ÷ 10 = 43.

5. (73 - 18) × 12 + 240 ÷ 2 - First, perform the subtraction inside the parentheses: 73 - 18 = 55. - Then, multiply 55 by 12: 55 × 12 = 660. - Finally, divide 240 by 2: 240 ÷ 2 = 120.

6. (12 × 20 - 221) × 10 + 140 - First, perform the multiplication inside the parentheses: 12 × 20 = 240. - Then, subtract 221 from 240: 240 - 221 = 19. - Next, multiply 19 by 10: 19 × 10 = 190. - Finally, add 190 to 140: 190 + 140 = 330.

7. (65 × 10 - 597) × 10 - 12 - First, perform the multiplication inside the parentheses: 65 × 10 = 650. - Then, subtract 597 from 650: 650 - 597 = 53. - Next, multiply 53 by 10: 53 × 10 = 530. - Finally, subtract 12 from 530: 530 - 12 = 518.

Therefore, the values of the given expression are as follows: 1. (820 + 10 + 718) ÷ 400 × 39 = 150.93 2. 25 × 5 ÷ 4 = 31.25 3. (145 ÷ 7) + 901 = 921.71 4. (547 + 53) ÷ 200 + 430 ÷ 10 = 3 + 43 = 46 5. (73 - 18) × 12 + 240 ÷ 2 = 660 + 120 = 780 6. (12 × 20 - 221) × 10 + 140 = 330 7. (65 × 10 - 597) × 10 - 12 = 518

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