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

[1/7 Formula]
    Work: Calculate the value of equation 1.85-0.9+2.8 .
    Question type: Mathematical calculation
    Solution:
          1.85-0.9+2.8
        =0.95+2.8
        =3.75
    Answer:1.85-0.9+2.8=3.75
[2/7 Formula]
    Work: Calculate the value of equation 3.64-1.6+1.4 .
    Question type: Mathematical calculation
    Solution:
          3.64-1.6+1.4
        =2.04+1.4
        =3.44
    Answer:3.64-1.6+1.4=3.44
[3/7 Formula]
    Work: Calculate the value of equation 6.45-3.8+21.89 .
    Question type: Mathematical calculation
    Solution:
          6.45-3.8+21.89
        =2.65+21.89
        =24.54
    Answer:6.45-3.8+21.89=24.54
[4/7 Formula]
    Work: Calculate the value of equation 4.75-1.7+8.9 .
    Question type: Mathematical calculation
    Solution:
          4.75-1.7+8.9
        =3.05+8.9
        =11.95
    Answer:4.75-1.7+8.9=11.95
[5/7 Formula]
    Work: Calculate the value of equation 12-0.5+43.9 .
    Question type: Mathematical calculation
    Solution:
          12-0.5+43.9
        =11.5+43.9
        =55.4
    Answer:12-0.5+43.9=55.4
[6/7 Formula]
    Work: Calculate the value of equation 11.56-5.8+2.567 .
    Question type: Mathematical calculation
    Solution:
          11.56-5.8+2.567
        =5.76+2.567
        =8.327
    Answer:11.56-5.8+2.567=8.327
[7/7 Formula]
    Work: Calculate the value of equation 8.4-6.45+6.9 .
    Question type: Mathematical calculation
    Solution:
          8.4-6.45+6.9
        =1.95+6.9
        =8.85
    Answer:8.4-6.45+6.9=8.85

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>>注：本次最多计算 7 道题。

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