Overview: 4 questions will be solved this time.Among them
           ☆4 arithmetic calculations

[1/4 Formula]
    Work: Calculate the value of equation 369-(156-96) .
    Question type: Mathematical calculation
    Solution:
          369-(156-96)
        =369-60
        =309
    Answer:369-(156-96)=309
[2/4 Formula]
    Work: Calculate the value of equation 247-(125+46) .
    Question type: Mathematical calculation
    Solution:
          247-(125+46)
        =247-171
        =76
    Answer:247-(125+46)=76
[3/4 Formula]
    Work: Calculate the value of equation (75+69)÷6 .
    Question type: Mathematical calculation
    Solution:
          (75+69)÷6
        =144÷6
        =24
    Answer:(75+69)÷6=24
[4/4 Formula]
    Work: Calculate the value of equation 147÷(2+1) .
    Question type: Mathematical calculation
    Solution:
          147÷(2+1)
        =147÷3
        =49
    Answer:147÷(2+1)=49

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