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[(960÷32)+16]x20脱式计算

(960÷16+4)x20 =(60+4)x20 =64×20 =1280 (960÷16+4)x20 =(60+4)x20 =60×20+4×20 =1200+80 =1280

(307十99)x20 =(300+100+6)x20 =6000+2000+120 =8120 朋友,请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!!! 朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白,请追问。谢谢。

(307十99)x20 =406x20 =8120

1.05x20 =(1+0.05)x20 =20+1 =21

0.48x20.2-4.2 =0.48x(20+0.2)-4.2 =0.48x20+0.48x0.2-4.2 =9.696-4.2 =5.496 如有帮助请采纳,

脱式计算(160十880)X20怎么做 (160十880)X20 =1040x20 =20800

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