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

Toán Lớp 4: 2424 : 8 : 3 ( 360 x 25 ) : 24 tính nhanh nha mn

Toán Lớp 4: 2424 : 8 : 3
( 360 x 25 ) : 24
tính nhanh nha mn

Comments ( 2 )

  1. 2424 : 8 : 3
    = 2424 : ( 8 × 3 )
    = 2424 : 24
    = 101
    $\text{ __________ }$
    ( 360 × 25 ) : 24
    = ( 360 : 24 ) × 25
    = 15 × 25
    = 375 

  2. 2424:8:3
    =2424:(8×3)
    =2424:24
    =101
     (360×25):24
    (dùng phương pháp hoán đổi)
    =(360:24)×25
    =15×25
    =375
    $@Masonn$

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