问题
解答题
|
答案
(1)5.6-4.28+6.O9,
=1.32+6.09,
=7.41;
(2)32-6.34-3.66,
=32-(6.34+3.66),
=32-10,
=22;
(3)2.5+3.25+0.75+7.5,
=(2.5+7.5)+(3.25+0.75),
=10+4,
=14.
|
(1)5.6-4.28+6.O9,
=1.32+6.09,
=7.41;
(2)32-6.34-3.66,
=32-(6.34+3.66),
=32-10,
=22;
(3)2.5+3.25+0.75+7.5,
=(2.5+7.5)+(3.25+0.75),
=10+4,
=14.