Overview: 7 questions will be solved this time.Among them
           ☆7 arithmetic calculations

[1/7 Formula]
    Work: Calculate the value of equation 828-53-47 .
    Question type: Mathematical calculation
    Solution:
          828-53-47
        =775-47
        =728
    Answer:828-53-47=728
[2/7 Formula]
    Work: Calculate the value of equation 845-167-145 .
    Question type: Mathematical calculation
    Solution:
          845-167-145
        =678-145
        =533
    Answer:845-167-145=533
[3/7 Formula]
    Work: Calculate the value of equation 787-187-139-61 .
    Question type: Mathematical calculation
    Solution:
          787-187-139-61
        =600-139-61
        =461-61
        =400
    Answer:787-187-139-61=400
[4/7 Formula]
    Work: Calculate the value of equation 469-25-25-50 .
    Question type: Mathematical calculation
    Solution:
          469-25-25-50
        =444-25-50
        =419-50
        =369
    Answer:469-25-25-50=369
[5/7 Formula]
    Work: Calculate the value of equation 945-180-245 .
    Question type: Mathematical calculation
    Solution:
          945-180-245
        =765-245
        =520
    Answer:945-180-245=520
[6/7 Formula]
    Work: Calculate the value of equation 455-(230-45) .
    Question type: Mathematical calculation
    Solution:
          455-(230-45)
        =455-185
        =270
    Answer:455-(230-45)=270
[7/7 Formula]
    Work: Calculate the value of equation 572-(36-28) .
    Question type: Mathematical calculation
    Solution:
          572-(36-28)
        =572-8
        =564
    Answer:572-(36-28)=564

---

>>注：本次最多计算 7 道题。

Your problem has not been solved here? Please go to the Hot Problems section！