
脱式计算. 0.34+1.42-
脱式计算.0.34+1.42-0.538.4+5.2+4.38.4-7.85+3.22.58-(3.5-2.8)...
脱式计算. 0.34+1.42-0.53 8.4+5.2+4.3 8.4-7.85+3.2 2.58-(3.5-2.8)
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(1)0.34+1.42-0.53,
=1.76-0.53,
=1.23;
(2)8.4+5.2+4.3,
=13.6+4.3,
=17.9;
(3)8.4-7.85+3.2,
=0.55+3.2,
=3.75;
(4)2.58-(3.5-2.8),
=2.58-0.7,
=1.88.
=1.76-0.53,
=1.23;
(2)8.4+5.2+4.3,
=13.6+4.3,
=17.9;
(3)8.4-7.85+3.2,
=0.55+3.2,
=3.75;
(4)2.58-(3.5-2.8),
=2.58-0.7,
=1.88.
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