问题
解答题
|
答案
(1)14.4÷0.125÷8,
=14.4÷(0.125×8),
=14.4÷1,
=14.4;
(2)1.5×
+0.8×5.5+2×4 5
,4 5
=1.5×0.8+0.8×5.5+2×0.8,
=(1.5+5.5+2)×0.8,
=9×0.8,
=7.2;
(3)920÷40+23×99,
=23+23×99,
=23×(1+99),
=23×100,
=2300;
(4)
+5 9
+3 11
+4 9
,8 11
=(
+5 9
)+(4 9
+3 11
),8 11
=1+1,
=2;
(5)1005÷[42×(
-5 6
)],5 7
=1005÷[42×
-42×5 6
)],5 7
=1005÷[35-30],
=1005÷5,
=201;
(6)35÷[1-(
+1 5
)],1 7
=35÷[1-
],12 35
=35÷
,23 35
=35×
,35 23
=
;1225 23
(7)848-80÷16×27,
=848-5×27,
=848-135,
=713;
(8)29×
+17 131
×114,29 131
=17×
+29 131
×114,29 131
=
×(17+114),29 131
=
×131,29 131
=29.