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

Toán Lớp 5: 1980:2-50+60 2580+90×5 2009+61:3

Toán Lớp 5: 1980:2-50+60
2580+90×5
2009+61:3

Comments ( 2 )

  1. Giải đáp:
    $\frac{1980}{2}$ -50+60=990-50+60=940+60=1000
    2580+90×5= 2580+450=3030
    2009 + $\frac{61}{3}$ = $\frac{6027}{3}$+$\frac{61}{3}$=$\frac{6088}{3}$
     

  2. a) 1980 : 2 – 50 + 60 
    =   990 – 50 + 60
    =        940 + 60 
    =            1000

    b) 2580 + 90 x 5 
    =  2580 +  450 
    =        3030

    c) 2009 + 61 : 3 
    = 2009  +  $\frac{61}{3}$ 
    = $\frac{6027}{3}$  + $\frac{61}{3}$ 
    =                 $\frac{6088}{3}$         

    —–Chúc bạn học tốt !!!—–

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

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