答:5.5╳7.9+0.55 简算过程如下:
1、提取原式:5.5╳7.9+0.55
2、计算过程:
=5.5 ╳ 7.9+5.5 ╳ 0.1
=5.5 ╳ ( 7.9+0.1 )
=5.5 ╳ 8
=44
3、【答案】44
简便计算如下:5.5×7.9+0.55=0.55×(79+1)=0.55×80=44