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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: A)10-[12-(-9-1)] :B) 271-[(+43)+271-(-17)]

Home/ Toán Lớp 6: A)10-[12-(-9-1)] :B) 271-[(+43)+271-(-17)]

Toán Lớp 6: A)10-[12-(-9-1)] :B) 271-[(+43)+271-(-17)]

Tháng Sáu 3, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: A)10-[12-(-9-1)] :B) 271-[(+43)+271-(-17)]

Comments ( 2 )

  1. mocmien87
    mocmien87
    3 Tháng Sáu, 2022 at 5:42 sáng
    Reply
    a,
    10-[12-(-9-1)]
    =10-[12-(-10)]
    =10-(12+10)
    =10-22
    =-12
    b,
    271-[(+43)+271-(-17)]
    =271-[(+43)+271+17]
    =271-[271+(43+17)]
    =271-(271+60)
    =271-271-60
    =(271-271)-60
    =0-60
    =-60
     

  2. khanhngantoan
    khanhngantoan
    3 Tháng Sáu, 2022 at 5:41 sáng
    Reply
    A)
    10 – [ 12 – ( -9 – 1 ) ]
    = 10 – [ 12 – ( -10 ) ]
    = 10 – [ 12 + 10 ]
    = 10 – 22
    = -12
    B)
    271 – [ ( +43 ) + 271 – ( -17 ) ]
    = 271 – [ 43 + 271 + 17 ]
    = 271 – 43 – 271 – 17
    = ( 271 – 271 ) – ( 43 + 17 )
    = 0 – 60
    = -60

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222-9+11+12:2*14+14 = ? ( )

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