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

[1/7 Formula]
    Work: Calculate the value of equation (2+65)×50 .
    Question type: Mathematical calculation
    Solution:
          (2+65)×50
        =67×50
        =3350
    Answer:(2+65)×50=3350
[2/7 Formula]
    Work: Calculate the value of equation 20×(5+29) .
    Question type: Mathematical calculation
    Solution:
          20×(5+29)
        =20×34
        =680
    Answer:20×(5+29)=680
[3/7 Formula]
    Work: Calculate the value of equation (2+40)×25 .
    Question type: Mathematical calculation
    Solution:
          (2+40)×25
        =42×25
        =1050
    Answer:(2+40)×25=1050
[4/7 Formula]
    Work: Calculate the value of equation (20+45)×50 .
    Question type: Mathematical calculation
    Solution:
          (20+45)×50
        =65×50
        =3250
    Answer:(20+45)×50=3250
[5/7 Formula]
    Work: Calculate the value of equation (4+50)×25 .
    Question type: Mathematical calculation
    Solution:
          (4+50)×25
        =54×25
        =1350
    Answer:(4+50)×25=1350
[6/7 Formula]
    Work: Calculate the value of equation 40×(25+62) .
    Question type: Mathematical calculation
    Solution:
          40×(25+62)
        =40×87
        =3480
    Answer:40×(25+62)=3480
[7/7 Formula]
    Work: Calculate the value of equation 40×(78+25) .
    Question type: Mathematical calculation
    Solution:
          40×(78+25)
        =40×103
        =4120
    Answer:40×(78+25)=4120

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>>注：本次最多计算 7 道题。

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