135 + 306 ÷ 17 + 265 how to calculate simply? Please teach me, please

=（135+265）+306÷17
=400+9×34÷17
=400+9×2
=400+18
=418

RELATED INFORMATIONS

1. 5 / 6 + 9 / 10 + 1 / 6 1 / 1-5 3 / 5 2 / 8 5 / 12 1 + 5 / 12 3 / 4 - (7 / 12-1 / 4) 1 / 9 + 5 / 12 + 1 / 12 + 8 / 9 + 3 / 8 + (5 / 8-5 / 9) If it's easy, it's easy fast
2. 7 () 2 divided by 7 to make the middle of quotient 0, what number to fill in
3. 7.9 divided by 6
4. 136÷（14+112-718-136）+（14+112-718-136）÷136．
5. Why can the sum of even numbers in 1-100 be equal to the sum of numbers in 1-50 multiplied by 2
6. 2017 1 / 8 divided by 9 =? Be clever!
7. How to divide 19.8 by 3.3?
8. If the left side of the equation is divided by 2 and the right side is multiplied by 0.5, the left and right sides of the equation are still equal In three minutes
9. When 0.39:78, 4 cm:20 km, 5:3:25:27, 24:0.2, simplify the comparison and calculate the ratio
10. The positive roots of the equation x + TaNx = 0 are arranged as A1, A2, A3,..., an from small to large 1 0
11. One third plus parentheses one sixty eighth plus fifty one two times seventeen Hand it in tomorrow
12. Add 11 to a number, subtract 12, multiply 13, and divide 14 to get 26. "What is this number?
13. Solving equation (x divided by 4) ^ 2 + (20-x) divided by the square of 4 = 17
14. The second power of (- 3) - the third power of (- 5) - the second power of (- 2 / 5) - 18 divided by the second power of (- 3)
15. What is a number divided by itself What do two quantities of 1:1 mean
16. 3795 minus 1130 equals 2665 165 times 23 equals 3795 2665 divided by 65 equals 41 to find the comprehensive formula:
17. Calculation: tan45 ° and 2cos45 ° respectively=______ ．
18. Tan45 = 1, conversely, 1 equals tan45 degrees
19. A problem of tan45-cot15 tan45=1 cot15=tan75 The original formula = (tan45-tan75) / (1 + tan75) =(tan45-tan75)/(1+tan45tan75) =tan(45-75) =tan(-30) =-√3/3 How does the original formula = (tan45-tan75) / (1 + tan75) become the following one =(tan45-tan75)/(1+tan45tan75)
20. How much is 2sin60