A (131,4-80,8):2,3+21,84x2 B 8,16:(1:32+3,48)-0:345:2 tinh bang cach thuan tien nhat
1 câu trả lời
$A (131,4-80,8):2,3+21,84.2$
$=50,6 : 2,3+21,84 .2$
$=22+43,68$
$=65,68$
$B.8,16:(1:32+3,48)-0:345:2$
$=8,16 : 4,8-0,1725$
$=1,7-0,1725$
$=1,5275$
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