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

Toán Lớp 4: Tinh nhanh 16×48+8×48+16×28 2×4×8×50×25×125

Toán Lớp 4: Tinh nhanh
16×48+8×48+16×28
2×4×8×50×25×125

Comments ( 2 )

  1. 1)
    16 × 48 + 8 × 48 + 16 × 28
    = 16 × 48 + 8 × 2 × 24 + 16 × 28
    = 16 × 48 + 16 × 24 + 16 × 28
    = 16 × ( 48 + 24 + 28 )
    = 16 × 100
    = 1600
    2)
    2 × 4 × 8 × 50 × 25 × 125
    = ( 2 × 50 ) × ( 4 × 25 ) × ( 8 × 125 )
    = 100 × 100 × 1000
    = 10000 × 1000
    = 10000000
     

  2. Giải đáp:2.25×10^10
     
    Lời giải và giải thích chi tiết:
     

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