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8.72%0.72*4.5 5.5的脱式计算怎么做

解:依题意得算式, 72÷8÷3 =9÷3 =3 即72÷8÷3=3

73.6*27+ 73.6*73 =73.6*(27+73) =73.6*100 =7360 49.2-0.5*0.5-8.72 =49.2-0.25-8.72 =48.95-8.72 =40.23

72/8/3 =9/3 =3 如有帮助请采纳, 如对本题有疑问可追问,Good luck!

13.8-3.8-5.72-4.28 =(13.8-3.8)-(5.72+4.28) =10-10 =0

解:原式=72.8+64.59 =137.39 分析:直接运算最简便。

(5/8+2/9)x72 =5/8x72+2/9x72 =5x9+2x8 =45+16 =61

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