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

[1/7 Formula]
    Work: Calculate the value of equation 13.77-0.08+1.81 .
    Question type: Mathematical calculation
    Solution:
          13.77-0.08+1.81
        =13.69+1.81
        =15.5
    Answer:13.77-0.08+1.81=15.5
[2/7 Formula]
    Work: Calculate the value of equation 66.6-2.1+2.88 .
    Question type: Mathematical calculation
    Solution:
          66.6-2.1+2.88
        =64.5+2.88
        =67.38
    Answer:66.6-2.1+2.88=67.38
[3/7 Formula]
    Work: Calculate the value of equation 6.5+65.7-12.1 .
    Question type: Mathematical calculation
    Solution:
          6.5+65.7-12.1
        =72.2-12.1
        =60.1
    Answer:6.5+65.7-12.1=60.1
[4/7 Formula]
    Work: Calculate the value of equation 4.53-(23.7-21.3) .
    Question type: Mathematical calculation
    Solution:
          4.53-(23.7-21.3)
        =4.53-2.4
        =2.13
    Answer:4.53-(23.7-21.3)=2.13
[5/7 Formula]
    Work: Calculate the value of equation 5.4+0.009-0.007 .
    Question type: Mathematical calculation
    Solution:
          5.4+0.009-0.007
        =5.409-0.007
        =5.402
    Answer:5.4+0.009-0.007=5.402
[6/7 Formula]
    Work: Calculate the value of equation 7.58+28.9-3.9 .
    Question type: Mathematical calculation
    Solution:
          7.58+28.9-3.9
        =36.48-3.9
        =32.58
    Answer:7.58+28.9-3.9=32.58
[7/7 Formula]
    Work: Calculate the value of equation 24.8+3.97-23.87 .
    Question type: Mathematical calculation
    Solution:
          24.8+3.97-23.87
        =28.77-23.87
        =4.9
    Answer:24.8+3.97-23.87=4.9

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>>注：本次最多计算 7 道题。

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