发布人:繁体字网(www.fantiz5.com) 发布时间:2015-10-24 07:30:00
试题原文 |
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①
=
=
=
②(0.4+
=
=
=6.4; ③1.25+1
=1.25+1.25×7.4+1.25×1.6, =1.25×(1+7.4+1.6), =1.25×10, =12.5; ④
=
=
=1; ⑤6.6-1
=6.6-1
=6.6-1
=6.6-1
=6.6-1
=6.6-4, =2.6; ⑥5
=5.25-2.125+4.75-3.375, =(5.25+4.75)-(2.125+3.375), =10-5.5, =4.5; ⑦1
=1
=1
=1
=1
=1
⑧
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=
=
=
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