简便计算. 0.25×(4-0.2) 9.54-5.54-2.46.
2个回答
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(1)0.25×(4-0.2)
=0.25×4-0.25×0.2
=1-0.05
=0.95;
(2)9.54-5.54-2.46
=9.54-(5.54+2.46)
=9.54-8
=1.54.
=0.25×4-0.25×0.2
=1-0.05
=0.95;
(2)9.54-5.54-2.46
=9.54-(5.54+2.46)
=9.54-8
=1.54.
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