立即下载 | 限时 免费 下载 |
同类热门下载
简介:
0.32×403
=0.32×(400+3)
=0.32×400+0.32×3
=128+0.96
=128.96
0.85×9.9
=0.85×(10-0.1)
=0.85×10-0.85×0.1
=8.5-0.085
=8.415
7.2×0.2+2.4×1.4
=2.4×(3×0.2)+2.4×1.4
=2.4×(0.6+1.4)
=2.4×2
=4.8
8.9×1.01
=8.9×(1+0.01)
=8.9×1+8.9×0.01
=8.9+0.089
=8.989