Question

ПОМОГИТЕ РЕШИТЬ 450-30×4+70÷10=……… 280÷7+160×5+70=……… 650+350-80÷2×5=……… 180+20×6-75÷25=……… 980-(150+30)÷30=……… 1600+(470-70)×3=……… 400×3-(750-550)×4=……… 820+(1420-1400)×8=……… (860+40)-(560-60)÷100=……… (920-50)+(480+24)÷6=……… 2400-(270+30)×(400-396)=……… 510×6-(780-20)+(230+470)=………

Answer 1

450-30×4+70÷10=3371)30×4=120
2)70÷10=7
3)450-120=330
4)330+7=337 

Answer 2

To solve the given expressions step by step:

1. 450 - 30 × 4 + 70 ÷ 10 = ? Start by performing multiplication and division from left to right: 450 - 120 + 7 = Then, perform addition and subtraction from left to right: 330 + 7 = 337

2. 280 ÷ 7 + 160 × 5 + 70 = ? Perform multiplication and division from left to right: 40 + 800 + 70 = Perform addition from left to right: 840 + 70 = 910

3. 650 + 350 - 80 ÷ 2 × 5 = ? Perform division and multiplication from left to right: 650 + 350 - 40 × 5 = Perform multiplication and addition/subtraction from left to right: 650 + 350 - 200 = Perform addition and subtraction from left to right: 1000 - 200 = 800

4. 180 + 20 × 6 - 75 ÷ 25 = ? Perform multiplication and division from left to right: 180 + 120 - 3 = Perform addition and subtraction from left to right: 300 - 3 = 297

5. 980 - (150 + 30) ÷ 30 = ? Perform addition and division from left to right within parentheses: 980 - 180 ÷ 30 = Perform division from left to right: 980 - 6 = Perform subtraction: 974

6. 1600 + (470 - 70) × 3 = ? Perform subtraction within parentheses: 1600 + 400 × 3 = Perform multiplication: 1600 + 1200 = Perform addition: 2800

7. 400 × 3 - (750 - 550) × 4 = ? Perform subtraction within parentheses: 400 × 3 - 200 × 4 = Perform multiplication: 1200 - 800 = Perform subtraction: 400

8. 820 + (1420 - 1400) × 8 = ? Perform subtraction within parentheses: 820 + 20 × 8 = Perform multiplication: 820 + 160 = Perform addition: 980

9. (860 + 40) - (560 - 60) ÷ 100 = ? Perform addition and subtraction within parentheses: 900 - 500 ÷ 100 = Perform division: 900 - 5 = Perform subtraction: 895

10. (920 - 50) + (480 + 24) ÷ 6 = ? Perform addition and subtraction within parentheses: 870 + 504 ÷ 6 = Perform division: 870 + 84 = Perform addition: 954

11. 2400 - (270 + 30) × (400 - 396) = ? Perform addition and subtraction within parentheses: 2400 - 300 × 4 = Perform multiplication: 2400 - 1200 = Perform subtraction: 1200

12. 510 × 6 - (780 - 20) + (230 + 470) = ? Perform subtraction within parentheses: 510 × 6 - 760 + 700 = Perform multiplication and addition/subtraction from left to right: 3060 - 760 + 700 = Perform addition and subtraction from left to right: 2300 + 700 = Perform addition: 3000

Therefore, the answers to the given expressions are: 337, 910, 800, 297, 974, 2800, 400, 980, 895, 954, 1200, 3000.