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

[1/7 Formula]
    Work: Calculate the value of equation 5.9+6.9 .
    Question type: Mathematical calculation
    Solution:
          5.9+6.9
        =12.8
    Answer:5.9+6.9=12.8
[2/7 Formula]
    Work: Calculate the value of equation 12.8+34.9 .
    Question type: Mathematical calculation
    Solution:
          12.8+34.9
        =47.7
    Answer:12.8+34.9=47.7
[3/7 Formula]
    Work: Calculate the value of equation 56.78+12.89 .
    Question type: Mathematical calculation
    Solution:
          56.78+12.89
        =69.67
    Answer:56.78+12.89=69.67
[4/7 Formula]
    Work: Calculate the value of equation 4.9+1.7 .
    Question type: Mathematical calculation
    Solution:
          4.9+1.7
        =6.6
    Answer:4.9+1.7=6.6
[5/7 Formula]
    Work: Calculate the value of equation 45.12+23.56 .
    Question type: Mathematical calculation
    Solution:
          45.12+23.56
        =68.68
    Answer:45.12+23.56=68.68
[6/7 Formula]
    Work: Calculate the value of equation 5.1+2.1 .
    Question type: Mathematical calculation
    Solution:
          5.1+2.1
        =7.2
    Answer:5.1+2.1=7.2
[7/7 Formula]
    Work: Calculate the value of equation 6.7+2.8 .
    Question type: Mathematical calculation
    Solution:
          6.7+2.8
        =9.5
    Answer:6.7+2.8=9.5

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>>注：本次最多计算 7 道题。

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