Question

0.98×2.98怎么简便计算

Answer 1

计算过程如下
原式＝（1-0.02）×2.98
＝1×2.98-0.02×2.98
＝2.98-0.0596
＝2.9204

Answer 2

=(1－0.02)×2.98
=2.98－0.02×2.98
=2.98－0.02×(3－0.02)
=2.98－0.06+0.0004
=2.92+0.0004
=2.9204