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

[1/7 Formula]
    Work: Calculate the value of equation 15×23+85×23 .
    Question type: Mathematical calculation
    Solution:
          15×23+85×23
        =345+85×23
        =345+1955
        =2300
    Answer:15×23+85×23=2300
[2/7 Formula]
    Work: Calculate the value of equation 34×9+66×9 .
    Question type: Mathematical calculation
    Solution:
          34×9+66×9
        =306+66×9
        =306+594
        =900
    Answer:34×9+66×9=900
[3/7 Formula]
    Work: Calculate the value of equation 19×43+81×43 .
    Question type: Mathematical calculation
    Solution:
          19×43+81×43
        =817+81×43
        =817+3483
        =4300
    Answer:19×43+81×43=4300
[4/7 Formula]
    Work: Calculate the value of equation 24×78+76×78 .
    Question type: Mathematical calculation
    Solution:
          24×78+76×78
        =1872+76×78
        =1872+5928
        =7800
    Answer:24×78+76×78=7800
[5/7 Formula]
    Work: Calculate the value of equation 35×16+65×16 .
    Question type: Mathematical calculation
    Solution:
          35×16+65×16
        =560+65×16
        =560+1040
        =1600
    Answer:35×16+65×16=1600
[6/7 Formula]
    Work: Calculate the value of equation 17×53+83×53 .
    Question type: Mathematical calculation
    Solution:
          17×53+83×53
        =901+83×53
        =901+4399
        =5300
    Answer:17×53+83×53=5300
[7/7 Formula]
    Work: Calculate the value of equation 98×28+2×28 .
    Question type: Mathematical calculation
    Solution:
          98×28+2×28
        =2744+2×28
        =2744+56
        =2800
    Answer:98×28+2×28=2800

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>>注：本次最多计算 7 道题。

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