Toán Lớp 4: Giúp em nhanh ạ.
Tính nhanh :
3457-27×48-48×73+6543
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Toán Lớp 4: Giúp em nhanh ạ.
Tính nhanh :
3457-27×48-48×73+6543
Comments ( 2 )
3457 – 27 x 48 – 48 x 73 + 6543
$\text{( 3457 + 6543 ) – 48 (27 + 73 )}$
$\text{ = 10000 – 4800 = 5200}$
@bibihocbai
#Broken.
3457 – 27 × 48 – 48 × 73 + 6543
= (3457 + 6543)– 48 × ( 27 + 73)
= 10 000 – 48 × 100
= 10 000 – 4800
= 5 200