《描述并绘制路线图》口算练习

$0.27\times \frac {7} {9}=$

$0.44\times \frac {1} {2}=$

$0.56\times \frac {3} {8}=$

$5.4\times \frac {5} {9}=$

$3.6\times \frac {5} {12}=$

$4.8\times \frac {3} {8}=$

$1.15\times \frac {1} {5}=$

$0.66\times \frac {1} {22}=$