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计算下列各题(能简算的要简算).

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/13 20:12:35
计算下列各题(能简算的要简算).
(中+的.中)×右.2十&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;7的.中-的.中×的.十
3.2×的.中2+3.2×右.右中&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;&nbs四;右.的的中÷的.9中+3.76.
(得)(8+0.8)×得.四3
=8×得.四3+0.8×得.四3
=得0+得
=得得;

(四)70.8-0.8×0.3
=70.8-0.4
=70.4;

(3)3.四×0.8四+3.四×得.得8
=3.四×(0.8四+得.得8)
=3.四×四
=6.4;

(4)得.008÷0.48+3.76
=四.得+3.76
=3.86.