17.2x0.68+1.72x3.1+1.72怎么做?
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17.2×0.68+1.72×3.1+1.72
=1.72×(6.8+3.1+1)
=1.72+10.9
=12.62
=1.72×(6.8+3.1+1)
=1.72+10.9
=12.62
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17.2×0.68+1.72×3.1+1.72
=1.72×6.8+1.72×3.1+1.72×1
=1.72×(6.8+3.1+1)
=1.72×10.9
=1.72×10+1.72×0.9
=17.2+1.548
=18.748
=1.72×6.8+1.72×3.1+1.72×1
=1.72×(6.8+3.1+1)
=1.72×10.9
=1.72×10+1.72×0.9
=17.2+1.548
=18.748
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展开全部
17.2×0.68+1.72×3.1+1.72
=1.72×6.8+1.72×3.1+1.72
=1.72×(6.8+3.1)+1.72
=1.72×10-1.72×0.1+1.72
=17.2-0.172+1.72
=18.748
=1.72×6.8+1.72×3.1+1.72
=1.72×(6.8+3.1)+1.72
=1.72×10-1.72×0.1+1.72
=17.2-0.172+1.72
=18.748
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