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

[1/7 Formula]
    Work: Calculate the value of equation 22+10+13 .
    Question type: Mathematical calculation
    Solution:
          22+10+13
        =32+13
        =45
    Answer:22+10+13=45
[2/7 Formula]
    Work: Calculate the value of equation 31+10+42 .
    Question type: Mathematical calculation
    Solution:
          31+10+42
        =41+42
        =83
    Answer:31+10+42=83
[3/7 Formula]
    Work: Calculate the value of equation 12+21+48 .
    Question type: Mathematical calculation
    Solution:
          12+21+48
        =33+48
        =81
    Answer:12+21+48=81
[4/7 Formula]
    Work: Calculate the value of equation 37+4+20 .
    Question type: Mathematical calculation
    Solution:
          37+4+20
        =41+20
        =61
    Answer:37+4+20=61
[5/7 Formula]
    Work: Calculate the value of equation 28+7+12 .
    Question type: Mathematical calculation
    Solution:
          28+7+12
        =35+12
        =47
    Answer:28+7+12=47
[6/7 Formula]
    Work: Calculate the value of equation 21+50+9 .
    Question type: Mathematical calculation
    Solution:
          21+50+9
        =71+9
        =80
    Answer:21+50+9=80
[7/7 Formula]
    Work: Calculate the value of equation 9+15+60 .
    Question type: Mathematical calculation
    Solution:
          9+15+60
        =24+60
        =84
    Answer:9+15+60=84

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>>注：本次最多计算 7 道题。

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