问题
解答题
脱式计算.
|
答案
(1)3375÷27×12,
=125×12,
=1500;
(2)(0.75+10.2)÷0.25×25%,
=10.95÷0.25×0.25,
=10.95÷(0.25÷0.25),
=10.95;
(3)(4
-1.6×4 5
)÷43 4
,1 2
=(4
-1.2)÷44 5
,1 2
=3.6÷4
,1 2
=0.8;
(4)2
×[18 9
-(3 4
-7 16
)],1 4
=2
×[18 9
-3 4
],3 16
=2
×18 9
,9 16
=
.325 72