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

[1/7 Formula]
    Work: Calculate the value of equation (20+900)×45 .
    Question type: Mathematical calculation
    Solution:
          (20+900)×45
        =920×45
        =41400
    Answer:(20+900)×45=41400
[2/7 Formula]
    Work: Calculate the value of equation 45×(20+9) .
    Question type: Mathematical calculation
    Solution:
          45×(20+9)
        =45×29
        =1305
    Answer:45×(20+9)=1305
[3/7 Formula]
    Work: Calculate the value of equation 45×(2+1000) .
    Question type: Mathematical calculation
    Solution:
          45×(2+1000)
        =45×1002
        =45090
    Answer:45×(2+1000)=45090
[4/7 Formula]
    Work: Calculate the value of equation 4×(225+800) .
    Question type: Mathematical calculation
    Solution:
          4×(225+800)
        =4×1025
        =4100
    Answer:4×(225+800)=4100
[5/7 Formula]
    Work: Calculate the value of equation 40×(225+80) .
    Question type: Mathematical calculation
    Solution:
          40×(225+80)
        =40×305
        =12200
    Answer:40×(225+80)=12200
[6/7 Formula]
    Work: Calculate the value of equation (225+90)×40 .
    Question type: Mathematical calculation
    Solution:
          (225+90)×40
        =315×40
        =12600
    Answer:(225+90)×40=12600
[7/7 Formula]
    Work: Calculate the value of equation (225+700)×4 .
    Question type: Mathematical calculation
    Solution:
          (225+700)×4
        =925×4
        =3700
    Answer:(225+700)×4=3700

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>>注：本次最多计算 7 道题。

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