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

[1/7 Formula]
    Work: Calculate the value of equation 23.5-9.5 .
    Question type: Mathematical calculation
    Solution:
          23.5-9.5
        =14
    Answer:23.5-9.5=14
[2/7 Formula]
    Work: Calculate the value of equation 41.2-17.4 .
    Question type: Mathematical calculation
    Solution:
          41.2-17.4
        =23.8
    Answer:41.2-17.4=23.8
[3/7 Formula]
    Work: Calculate the value of equation 2.3+4.1 .
    Question type: Mathematical calculation
    Solution:
          2.3+4.1
        =6.4
    Answer:2.3+4.1=6.4
[4/7 Formula]
    Work: Calculate the value of equation 13.9-4.5 .
    Question type: Mathematical calculation
    Solution:
          13.9-4.5
        =9.4
    Answer:13.9-4.5=9.4
[5/7 Formula]
    Work: Calculate the value of equation 3.9+1.8 .
    Question type: Mathematical calculation
    Solution:
          3.9+1.8
        =5.7
    Answer:3.9+1.8=5.7
[6/7 Formula]
    Work: Calculate the value of equation 2.2+5.9 .
    Question type: Mathematical calculation
    Solution:
          2.2+5.9
        =8.1
    Answer:2.2+5.9=8.1
[7/7 Formula]
    Work: Calculate the value of equation 4.9+6.5 .
    Question type: Mathematical calculation
    Solution:
          4.9+6.5
        =11.4
    Answer:4.9+6.5=11.4

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>>注：本次最多计算 7 道题。

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