77*13+225*999+510

RELATED INFORMATIONS

• 1. 77×13+255×999+510．
• 2. 77*13+255*999+510 =77*11+77*2+255*999+255*2 =77*11+154+255*1001 =77*11+154+255*(1000+1) =77*11+154+255*1000+255*1 =847+154+255000+255 =1256+255000=256256 Sorry, I can't understand this process, please explain
• 3. My father is 27 years old. Four years later, my father is four times as old as my son. How old is my father now?
• 4. My father is 33 years old and my son is 5 years old. A few years later, my father is three times as old as my son
• 5. My father is 28 years older than Xiao Liang. Seven years later, my father's age is just three times that of Xiao Liang. How old are my father and Xiao Liang after seven years?
• 6. 81 6 A project team dug a 4.2km canal in 24 days, 1 / 5 more than the actual number of days. How many kilometers were actually dug every day?
• 7. 81 3 Passenger cars and freight cars start from both places at the same time and travel in opposite directions. The passenger cars travel 35 kilometers per hour, which is 5 / 7 of the speed of freight cars. After 3.5 hours, the two cars meet. How many meters is the distance between the two places?
• 8. Xiao Ming's mother went shopping in the supermarket. It is known that 13 eggs, 5 duck eggs and 9 quail eggs cost 9.25 yuan; 2 eggs, 4 duck eggs and 3 quail eggs cost 3.20 yuan. Q: how much does Xiao Ming's mother want to pay for one egg, one duck egg and one quail egg?
• 9. Recruits training, soldiers Xiaoxi 10 shot hit 81 ring, so Xiaoxi at least one shot hit 9 ring, why?
• 10. Recruits training, soldier Xiao Li 5 shot hit 41 ring, soldier Xiao Li at least one shot hit 8 ring. Why?
• 11. 77×13+255×999+510．
• 12. 77×13+255×999+510．
• 13. 0, 1, - 3, 7, - 15, 31. What is the 100th number
• 14. Find the rule 3, 7, 15, 31, 63___ ,255
• 15. Fill in the number according to the rule: 1, 3, 7, 15, 31______ ，______ ．
• 16. 1 2 / 3 3 / 7 4 / 15 5 / 31
• 17. 1,3,7,15,31,63,127…… What is n
• 18. What should be in the brackets 0, - 1, 3, - 7, (), - 31, 63, - 127?
• 19. 1 3 7 15 31 63. How to express rules with letters
• 20. 1.2.7.15.31.63. What are the rules of this group of numbers Wrong, it's 1.3.7.15.31.63.