这两道题怎么做
展开全部
(1)3.84×9.6+0.96×61.6
=3.84×9.6+9.6×6.16
=(3.84+6.16)×9.6
=10×9.6
=96
(2)2.9×0.45+0.29×4.2+0.029×13
=2.9×0.45+2.9×0.42+2.9×0.13
=2.9×(0.45+0.42+0.13)
=2.9×1
=2.9
=3.84×9.6+9.6×6.16
=(3.84+6.16)×9.6
=10×9.6
=96
(2)2.9×0.45+0.29×4.2+0.029×13
=2.9×0.45+2.9×0.42+2.9×0.13
=2.9×(0.45+0.42+0.13)
=2.9×1
=2.9
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展开全部
3.84×9.6+0.96×61.6
=3.84×9.6+9.6×6.16
=(3.84+6.16)×9.6
=10×9.6
=96
2.9×0.45+0.29×4.2+0.029×13
=2.9×0.45+2.9×0.42+2.9+0.13
=2.9×(0.45+0.42+0.13)
=2.9×1
=2.9
=3.84×9.6+9.6×6.16
=(3.84+6.16)×9.6
=10×9.6
=96
2.9×0.45+0.29×4.2+0.029×13
=2.9×0.45+2.9×0.42+2.9+0.13
=2.9×(0.45+0.42+0.13)
=2.9×1
=2.9
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
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