2.1*2.6+7.4*5.4+2.6+3.3 等于多少简便计算

0.147*368+0.632*147
2025-02-03 05:48:47
推荐回答(2个)
回答1:

2.1*2.6+7.4*5.4+2.6*3.3
=(2.1+3.3)*2.6+7.4*5.4
=5.4*2.6+7.4*5.4
=5.4*(2.67.4)
=5.4*10
=54

0.147*368+0.632*147

=147*0.368+0.632*147
=147*(0.368+0.632)
=147*1
=147

回答2:

楼上是正解