0.25×8.19-0.25×4.19
问题描述:
0.25×8.19-0.25×4.19
答
0.25×8.19-0.25×4.19
=0.25×(8.19-4.19)
=0.25×4
=1
答
=【8.19-4.19】×0.25
=4×0.25
=1
答
0.25×8.19-0.25×4.19
=0.25 ×(8.19-4.19)
=0.25×4
=1
所以答案是1