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脱式计算8.4×0.26

(1)6.8×0.26+3.75=1.768+3.75,=5.518;(2)(9-2.35)×0.48,=6.65×0.48,=3.192;(3)4×O.8×2.5×1.25,=(4×2.5)×(O.8×1.25),=10×1,=10; (4)2.75×102,=2.75×(100+2),=2.75×100+2.75×2,=275+5.5,=280.5.

0.38+0.26+2.6 =0.64+2.6 =3.24 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!谢谢管理员推荐采纳!! 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。

7.8÷0.26÷0.3 =7.8÷(0.26×0.3) =7.8÷0.78 =10,

380÷(26-24)×0.5 =380÷2×0.5 =190×0.5 =95

7.2x0.26+72*0.374 =7.2x0.26+7.2x10x0.374 =7.2x0.26+7.2x3.74 =7.2x(0.26+3.74) =7.2x4 =28.8

7.2x0.26+72*0.374 =7.2x0.26+7.2x10x0.374 =7.2x0.26+7.2x3.74 =7.2x(0.26+3.74) =7.2x4 =28.8

2012年1月28日星期六一、口算题小数加法:0.3+1.5=2.5+9.8=7.6+1.3=4.4+5.7=2.3+7.7=5.7+3.1=7.69+2.31=9.16+2.64=5.68+12.22=16.8+16.5=小数减法:6.8-3.8=4.26-3.71=0.88-2.12=5.34-69.21=68.4-61.5=9.58-3.7=18.94-5.66=15.69-9.78=115-68.59...

解:62X26一25 =(60十2)X26一25 =60X26十2X26一25 =1560十52一25 =1560一25十52 =1535十52 =1587

32×125×25 =4×8×125×25 =(4×25)×(8×125) =100×1000 =100000 9048÷26 =(2600+2600+2600+1248)÷26 =2600÷26+2600÷26+2600÷26+1248÷26 =100+100+100+48 =348 2881÷ 43 =(1290+1591)÷ 43 =1290÷43+1591÷43 =30+37 =67 3.2×42.3×3.75-12.5×0....

3.75-6.8*0.26 =3.75-1.768 =1.982 (9-2.35)*0.64 =6.65*0.64 =4.256 78.7-17.7*3.6 =78.7-63.72 =14.98 9.9*(101-9.9) =9.9*91.1 =901.89

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