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46.9*3.7+46.9*5.3+46.9 3.79*78+5.21*78+78 126.5*0.25*40 0.96

来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/05/10 06:45:03
46.9*3.7+46.9*5.3+46.9 3.79*78+5.21*78+78 126.5*0.25*40 0.96*0.2*5 45.4*10.1
46.9*3.7+46.9*5.3+46.9
=46.9*(3.7+5.3+1)
=46.9*10
=469
3.79*78+5.21*78+78
=(3.79+5.21+1)*78
=10*21
=210
126.5*0.25*40
= 126.5*10*0.25*4
=1265*1
=1265
0.96*0.2*5
=0.96*1
=0.96
45.4*10.1
=45.4*(10+0.1)
=45.4*10+45.4*0.1
=454+4.54
=458.54