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

Toán Lớp 6: tính nhanh 230/23×23/21 232×334 ai có zalo kb ko

Toán Lớp 6: tính nhanh 230/23×23/21 232×334 ai có zalo kb ko

Comments ( 1 )

  1. 230/23 xx 23/21
    = {230 xx 23}/{23 xx 21}
    = 230/21
    _________________
    232 xx 334
    = (200 + 32) xx 334
    = 66800 + 10688
    = 77488
     

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