﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/11 01:06:52

﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44
﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44

﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44
﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44
=22×99-11×66-33×44
=66×33-66×11-66×22
=66×(33-11-22)
=66×0
=0

=11×11(2×9)-11×11×6-11×11(3×4)
=121(18-6-12)
=0