问题
解答题
简便计算下题
2.9×0.35+0.29×4.5+0.029×20．
答案
2.9×0.35+0.29×4.5+0.029×20
=2.9×0.35+2.9×0.45+2.9×0.2
=2.9×（0.35+0.45+0.2）
=2.9×1
=2.9．
搜题请搜索小程序“爱下问搜题”
简便计算下题
2.9×0.35+0.29×4.5+0.029×20．
2.9×0.35+0.29×4.5+0.029×20
=2.9×0.35+2.9×0.45+2.9×0.2
=2.9×（0.35+0.45+0.2）
=2.9×1
=2.9．