问题
解答题
|
答案
(1)9750÷25+75,
=390+75,
=465;
(2)(2.32+1.8)×6.5,
=4.12×6.5,
=26.78;
(3)101×7.8,
=(100+1)×7.8,
=100×7.8+1×7.8,
=780+7.8,
=787.8;
(4)
×5 8
+8 15
÷3 4
,1 4
=
+3,1 3
=3
;1 3
(5)
÷[1 3
-(3 4
+1 18
)],5 12
=
÷[1 3
-3 4
],17 36
=
÷1 3
,5 18
=
.6 5