Toán Lớp 6: f) b/48.19 + 48.115 + 134.52 g) d/27.121 – 87.27 + 73.34 h) f/125.98 – 125.46 – 52.25 i) h/ 136.23 +136.17 – 40.36 j) k/17.93 + 116.83

Question

Toán Lớp 6:  f) b/48.19 + 48.115 + 134.52 g) d/27.121 – 87.27 + 73.34 h) f/125.98 – 125.46 – 52.25 i) h/ 136.23 +136.17 – 40.36 j) k/17.93 + 116.83 + 17.23

maianh67 · Answer

Lời giải và giải thích chi tiết:     f) b/48.19 + 48.115 + 134.52     = 48. (19+115) + 6968     = 6432 + 6968     = 13400     g) d/27.121 &ndash; 87.27 + 73.34     = 27.(121-87) + 2482     = 918+2482     = 3400      h) f/125.98 &ndash; 125.46 &ndash; 52.25     = 125. (98-46) - 1300     = 6500 - 1300     = 5200      i) h/ 136.23 +136.17 &ndash; 40.36     = 136.(23+17) - 1440     = 5440-1440     = 4000      j) k/17.93 + 116.83 + 17.23      = 1581 + 9628 + 391     = 11600     mik l&agrave;m ko thuận tiện ạ mong tus cho qua

bichquyenlien · Answer

b ) 48 . 19 + 48 . 115 + 134 . 52   = 48 . ( 19 + 115 ) + 134 . 52   = 48 . 134 + 134 . 52   = 134 . ( 48 + 52 )   = 134 . 100    = 13400   d ) 27 . 121 - 87 . 27 + 73 . 34   = 27 . ( 121 - 87 ) + 73 . 34   = 27 . 34 + 73 . 34   = 34 . ( 27 + 73 )   = 34 . 100   = 3400   f ) 125 . 98 - 125 . 46 - 52 . 25   = 125 . ( 98 - 46 ) - 52 . 25   = 125.52 - 52 . 25   = 52 . ( 125 - 25 )   = 52 . 100   = 5200   h ) 136 . 23  + 136 . 17 - 40 . 36   = 136 . ( 23 + 17 ) - 40 . 36   = 136 . 40 - 40 . 36   = 40 . ( 136 - 36 )   = 40 . 100   = 4000   k ) 17 . 93 + 116 . 83 + 17 . 23   = 17 . ( 93 + 23 ) + 116 . 83   = 17 . 116 + 116 . 83   = 116 . ( 17 + 83 )   = 116 . 100   = 11600    #dtkc