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(5.2-4.6)x4.25-0.8简算怎样算?

解:(5.2-4.6)x4.25-0.8=0.6x4.25-0.6-0.2=0.6x3.25-0.2=1.95-0.2=1.75

解: (5.2--4.6)x4.25--0.8 =0.6x4.25--0.8 =0.6x4+0.6x0.25--0.8 =2.4+0.15--0.8 =1.6+0.15 =1.75.

(5.24.6)*4.250.8=0.6*4.25-0.8=0.6*(4+0.25)-0.8=2.4+0.15-0.8=1.6+0.15=1.75

(5.24.6)*4.250.8=0.6*4.250.8=2.550.8=1.75

0.48/(5.2-4.6)*0.8=0.48/0.6*0.8=0.8*0.8=0.640.48/((5.2-4.6)*0.8)=0.48/(0.6*0.8)=0.48/0.48=1

4.6+ 0.8-4.6-0.8=(4.6-4.6)+(0.8-0.8)=0+0=0

原式=(5.2-4.6)x(4.25-0.8)=0.6x3.45=0.6x3+0.6x0.4+0.6x0.05=1.8+0.24+0.03=2.04+0.03=2.07

=[5.2-5.2]+0.8+0.8=1.6

(5.2-4.6)x4.25-0.8=1.75括号5.2减去4.6括号乘以4.25再减去0.8,结果是1.75

(5.2-4.6)*4.25-0.8)=0.6*4.25-0.8=2.55-0.8=1.75 直接算最简便

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