把下面的算式补充完整.
18.7﹣16.4+
=18.7+ ﹣l6.4
=20﹣16.4
=
35.67+ +21.35
=35.67+( +21.35)
=35.67+50
=
54.37﹣ ﹣9.23
=54.37﹣( +9.23)
=54.37﹣10
=
33.25+6.23﹣
=33.25﹣ +6.23
=30+6.23
= .
把下面的算式补充完整.
18.7﹣16.4+
=18.7+ ﹣l6.4
=20﹣16.4
=
35.67+ +21.35
=35.67+( +21.35)
=35.67+50
=
54.37﹣ ﹣9.23
=54.37﹣( +9.23)
=54.37﹣10
=
33.25+6.23﹣
=33.25﹣ +6.23
=30+6.23
= .
试题篮
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