Question

Tính nhanh:

181,70 - 173,87 - 3,70

Answer 1

181,70-173,87-3,70

=181,70-3,70-173,87

=178-173,87

=4,13

Answer 2

=(181,70 - 3,70) - 173,87 = 178 - 173,87 = 4,13

Answer 3

181,70-173,87-3,70

=(181,70-3,70)-173,87

=178-173,87

=4,1