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脱式计算8.4×0.26

(1)8.4×0.26+58=2.184+0.625,=2.809.(2)34+76-17=2312?17,=14984;(3)31.7-0.5×0.7-1.65=31.7-0.35-1.65,=31.7-(0.35+1.65),=31.7-2,=29.7.(4)0.8×(3.2-15)=0.8×(3.2-0.2),=0.8×3,=2.4;(5)42.3×18+7.7×18=(42.3+7.7...

(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.

3.78÷3.6×(0.26+0.3) =(3.6+0.18)÷3.6×0.56 =3.6÷3.6×0.56+0.18÷3.6×0.56 =0.56+0.05x0.56 =0.56+0.028 =0.588

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÷0.078 =100

1.74乘5乘0.26乘5脱式计算 1.74*5+0.26*5 =5*(1.74+0.26) =5*2 =10

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+72x0.374 =72x0.026+72x0.374 =72x(0.026+0.374) =72x0.4 =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

脱式计算 0.26×70.7÷6.5÷2.8 =(0.26÷6.5)×(70.7÷2.8) =0.4×25.25 =10.1

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