数学题58×99+66×63这题怎么做？

Question

如题所述

Answer 1

解：该题用简便方法计算，可提取相同的整数99即可：
58X99十66X63
=58X99十11X6X7X9
=58X99十99X42
=99X（58十42）
=99X100
=9900

Answer 2

= 58 x99 + 6x11 x9 x7
= 58 x99 + 42 x99
= (58+42) x99
= 100 x99
= 9900

Answer 3

58×99+66×63
=58×99+11×6×7×9
=58×99+42×99
=99×100=9900

Answer 4

58×99+66×63
=58×9×11+6×11×9×7
=58×99+42×99
=(58+42)×99
=100×99
=9900

Answer 5

解：原式58X99+66Ⅹ63
=58X99+6X11X7X9
=58Ⅹ99+99X42
=（58+42）X99
=9900