999×7+111×37简便方法

Question

如题所述

Answer 1

解：该题用简便方法计算，把
999化成9X111，题中就有了
两个111了，提取111即可：
999X7十111X37
＝9X111X7十111Ⅹ37

＝111X（63十37）
二111X100
＝11100本回答被网友采纳

Answer 2

999×7+111×37
=111×9×7+111×37
=111×(63+37)
=111×100
=11100

Answer 3

=（111x9）x7+111x37
=111x（9x7）+111x37
=111x63+111x37
=111x（63+37）
=111x100
=11100

Answer 4

999×7+111×37
=9x111x7+111x37
=111x(9x7+37)
=111x(63+37)
=111x100
=11100