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

[1/7 Formula]
    Work: Calculate the value of equation 4.72+0.1-4.72+0.1 .
    Question type: Mathematical calculation
    Solution:
          4.72+0.1-4.72+0.1
        =4.82-4.72+0.1
        =0.1+0.1
        =0.2
    Answer:4.72+0.1-4.72+0.1=0.2
[2/7 Formula]
    Work: Calculate the value of equation 6.5+3.1-4.5+1.9 .
    Question type: Mathematical calculation
    Solution:
          6.5+3.1-4.5+1.9
        =9.6-4.5+1.9
        =5.1+1.9
        =7
    Answer:6.5+3.1-4.5+1.9=7
[3/7 Formula]
    Work: Calculate the value of equation 2.8+2.8-0.13+2.13 .
    Question type: Mathematical calculation
    Solution:
          2.8+2.8-0.13+2.13
        =5.6-0.13+2.13
        =5.47+2.13
        =7.6
    Answer:2.8+2.8-0.13+2.13=7.6
[4/7 Formula]
    Work: Calculate the value of equation 1.078-(1.078-0.456) .
    Question type: Mathematical calculation
    Solution:
          1.078-(1.078-0.456)
        =1.078-0.622
        =0.456
    Answer:1.078-(1.078-0.456)=0.456
[5/7 Formula]
    Work: Calculate the value of equation 5.85+1.89+2.15 .
    Question type: Mathematical calculation
    Solution:
          5.85+1.89+2.15
        =7.74+2.15
        =9.89
    Answer:5.85+1.89+2.15=9.89
[6/7 Formula]
    Work: Calculate the value of equation 2.48+1.46+1.54 .
    Question type: Mathematical calculation
    Solution:
          2.48+1.46+1.54
        =3.94+1.54
        =5.48
    Answer:2.48+1.46+1.54=5.48
[7/7 Formula]
    Work: Calculate the value of equation 7.68-2.74-1.26 .
    Question type: Mathematical calculation
    Solution:
          7.68-2.74-1.26
        =4.94-1.26
        =3.68
    Answer:7.68-2.74-1.26=3.68

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>>注：本次最多计算 7 道题。

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