用d喜欢的方法计算下面各题.2d2÷28+37d3.68-2.82-2.2836×(29+722)89×22-6×89d2-(d7+22)8.22-8.22÷229÷[(32+2d)÷22]2239×2d÷2223+222d722×72+29÷227.-数学
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答案
(多)7d0÷多8+83d, =0d+83d, =700; (0)8.68-0.80-0.多8, =8.68-(0.80+0.多8), =8.68-多, =0.68; (8)86×(
=86×
=8+0多, =09; (7)
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=多6; (d)
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