试卷更新日期:2020-12-04 类型:同步测试
0.07×0.4= 1.24×4= 2.6×0.5= 0.8×0.25 =
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①1.6×1.8≈
②2.8×0.16≈
③3.7×0.8≈
①0.25×3.9≈
②2.25×0.18≈
③4.02×7.1≈