Question

99.99×0.8+11点11×2.28如何简便计算？

Answer 1

99.99×0.8+11.11×2.28
=11.11×9×0.8+11.11×2.28
=11.11×（9×0.8+2.28）
=11.11×（7.2+2.28）
=11.11×9.48
=11.11×9+11.11×0.4+11.11×0.08
=99.99+4.444+0.8888
=105.3228

Answer 2

99.99х0.8+11.11х2.28=11.11х9х0.8+11.11х2.28=11.11х(7.2+2.28)=11.11х9.48=105.3228

Answer 3

把99.99分解成11.11×9 再提取它们相同的公因数11.11
=11.11×（9×0.8+2.28）
=11.11×（7.2+2.28）
=11.11×9.48
= 9.48×11.11
≈105.32

Answer 4

你好朋友，可以把99点99=11点11×9，这样子分开用9×0点八等于0.72和的2.28相结合，所以等于11.11乘以个3=33点三三

Answer 5

99.99×0.8+11.11×2.28
=11.11×9×0.8+11.11×2.28
=11.11（9×0.8+2.28）
=11.11×（7.2+2.28）
=11.11×9.48
=105.3228