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

Toán Lớp 3: Bài 4: Tính nhanh 178 + 284+370 – 84 -78 -70

Toán Lớp 3: Bài 4: Tính nhanh
178 + 284+370 – 84 -78 -70

Comments ( 2 )

  1. 178 + 284+370 – 84 -78 -70
    =(178-78)+(284-84)+(370-70)
    =100+200+300
    =300+300
    =600
    nếu thấy cosichs thì cho mik hay nhất nhé
     

  2. 178 + 284 + 370 – 84 – 78 – 70
    = ( 178 – 78 ) + ( 284 – 84 ) + ( 370 – 70 )
    = 100 + 200 + 300
    = 300 + 300
    = 600
     

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

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