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

[1/7 Formula]
    Work: Calculate the value of equation (20+90)×25 .
    Question type: Mathematical calculation
    Solution:
          (20+90)×25
        =110×25
        =2750
    Answer:(20+90)×25=2750
[2/7 Formula]
    Work: Calculate the value of equation (100+20)×25 .
    Question type: Mathematical calculation
    Solution:
          (100+20)×25
        =120×25
        =3000
    Answer:(100+20)×25=3000
[3/7 Formula]
    Work: Calculate the value of equation (2+50)×30 .
    Question type: Mathematical calculation
    Solution:
          (2+50)×30
        =52×30
        =1560
    Answer:(2+50)×30=1560
[4/7 Formula]
    Work: Calculate the value of equation (4+50)×150 .
    Question type: Mathematical calculation
    Solution:
          (4+50)×150
        =54×150
        =8100
    Answer:(4+50)×150=8100
[5/7 Formula]
    Work: Calculate the value of equation 8×(75+30) .
    Question type: Mathematical calculation
    Solution:
          8×(75+30)
        =8×105
        =840
    Answer:8×(75+30)=840
[6/7 Formula]
    Work: Calculate the value of equation 80×(40+75) .
    Question type: Mathematical calculation
    Solution:
          80×(40+75)
        =80×115
        =9200
    Answer:80×(40+75)=9200
[7/7 Formula]
    Work: Calculate the value of equation 24×(25+80) .
    Question type: Mathematical calculation
    Solution:
          24×(25+80)
        =24×105
        =2520
    Answer:24×(25+80)=2520

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>>注：本次最多计算 7 道题。

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