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

Toán Lớp 4: 1 tính nhanh 130×27+260×35+130×4-130

Toán Lớp 4: 1 tính nhanh
130×27+260×35+130×4-130

Comments ( 2 )

  1. Giải đáp+Lời giải và giải thích chi tiết:
    $130×27+260×35+130×4-130$
    $=130×27+130×2×35+130×4-130$
    $=130×27+130×70+130×4-130$
    $=130×(27+70+4-1)$
    $=130×100$
    $=13000$
     

  2. $130×27+260×35+130×4-130$
    $=130×27+130×70+130×4-130 $ $\text{x 1}$
    $=130×(27+70+4-1)$
    $=130×100$
    $=13000$
     

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

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