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

[1/7 Formula]
    Work: Calculate the value of equation 13.7-4.5 .
    Question type: Mathematical calculation
    Solution:
          13.7-4.5
        =9.2
    Answer:13.7-4.5=9.2
[2/7 Formula]
    Work: Calculate the value of equation 12.6+2.8 .
    Question type: Mathematical calculation
    Solution:
          12.6+2.8
        =15.4
    Answer:12.6+2.8=15.4
[3/7 Formula]
    Work: Calculate the value of equation 6.7+5.9 .
    Question type: Mathematical calculation
    Solution:
          6.7+5.9
        =12.6
    Answer:6.7+5.9=12.6
[4/7 Formula]
    Work: Calculate the value of equation 14.8-5.9 .
    Question type: Mathematical calculation
    Solution:
          14.8-5.9
        =8.9
    Answer:14.8-5.9=8.9
[5/7 Formula]
    Work: Calculate the value of equation 10.8+1.9 .
    Question type: Mathematical calculation
    Solution:
          10.8+1.9
        =12.7
    Answer:10.8+1.9=12.7
[6/7 Formula]
    Work: Calculate the value of equation 9.3-1.9 .
    Question type: Mathematical calculation
    Solution:
          9.3-1.9
        =7.4
    Answer:9.3-1.9=7.4
[7/7 Formula]
    Work: Calculate the value of equation 8.6+3.8 .
    Question type: Mathematical calculation
    Solution:
          8.6+3.8
        =12.4
    Answer:8.6+3.8=12.4

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>>注：本次最多计算 7 道题。

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