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

[1/7 Formula]
    Work: Calculate the value of equation 40×(5+40) .
    Question type: Mathematical calculation
    Solution:
          40×(5+40)
        =40×45
        =1800
    Answer:40×(5+40)=1800
[2/7 Formula]
    Work: Calculate the value of equation (60+80)×25 .
    Question type: Mathematical calculation
    Solution:
          (60+80)×25
        =140×25
        =3500
    Answer:(60+80)×25=3500
[3/7 Formula]
    Work: Calculate the value of equation (70+8)×25 .
    Question type: Mathematical calculation
    Solution:
          (70+8)×25
        =78×25
        =1950
    Answer:(70+8)×25=1950
[4/7 Formula]
    Work: Calculate the value of equation (20+8)×25 .
    Question type: Mathematical calculation
    Solution:
          (20+8)×25
        =28×25
        =700
    Answer:(20+8)×25=700
[5/7 Formula]
    Work: Calculate the value of equation 150×(2+70) .
    Question type: Mathematical calculation
    Solution:
          150×(2+70)
        =150×72
        =10800
    Answer:150×(2+70)=10800
[6/7 Formula]
    Work: Calculate the value of equation 15×(90+2) .
    Question type: Mathematical calculation
    Solution:
          15×(90+2)
        =15×92
        =1380
    Answer:15×(90+2)=1380
[7/7 Formula]
    Work: Calculate the value of equation 75×(2+30) .
    Question type: Mathematical calculation
    Solution:
          75×(2+30)
        =75×32
        =2400
    Answer:75×(2+30)=2400

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>>注：本次最多计算 7 道题。

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