问题
解答题
|
答案
(1)2.65×1.7+1.35×1.7,
=(2.65+1.35)×1.7,
=4×1.7,
=6.8;
(2)2.7×2-0.45,
=5.4-0.45,
=4.95;
(3)0.25×101,
=0.25×(100+1),
=0.25×100+0.25×1,
=25+0.25,
=25.25.
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(1)2.65×1.7+1.35×1.7,
=(2.65+1.35)×1.7,
=4×1.7,
=6.8;
(2)2.7×2-0.45,
=5.4-0.45,
=4.95;
(3)0.25×101,
=0.25×(100+1),
=0.25×100+0.25×1,
=25+0.25,
=25.25.