问题
解答题
8.9×0.99=8.9-8.9×0.01______. (判断对错)
答案
8.9×0.99
=8.9×(1-0.01)
=8.9-8.9×0.01
=8.9-0.089
=8.811.
故答案为:√.
8.9×0.99=8.9-8.9×0.01______. (判断对错)
8.9×0.99
=8.9×(1-0.01)
=8.9-8.9×0.01
=8.9-0.089
=8.811.
故答案为:√.