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

Toán Lớp 5: tinh nhanh 52,6 x 0,06 + 52,6 x 0,05 – 52,6 : 100

Toán Lớp 5: tinh nhanh
52,6 x 0,06 + 52,6 x 0,05 – 52,6 : 100

Comments ( 2 )

  1. 52,6 × 0,06 + 52,6 × 0,05 – 52,6 : 100
    = 52,6 × 0,06 + 52,6 × 0,05 – 52,6 × 0,01
    = 52,6 × ( 0,06 + 0,05 – 0,01 )
    = 52,6 × 0,1
    = 5,26

  2. Giải đáp:
    52,6×0,06+52,6×0,05-52,6:100
    =52,6×0,06+52,6×0,05-52,6×1/100
    =52,6×0,06+52,6×0,05-52,6×0,01
    =52,6×(0,06+0,05-0,01)
    =52,6×0,1
    =5,26

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

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