6.6×6.7=44.22
66.6×66.7=4442.22
666.6×666.7=444422.22
66.666×66.667=
666.666×666.667=
6.666666×6666.667=
1.47+53=
=
2.52=
2.5÷40%=
1.25×32=
38×27= 106×75=
918÷27= 871÷67=
45:25 ★30千克:0.9吨
5.1 :1.7 37.5%:0.8
⑴ ⑵
⑶ ⑷
①x:15=4:5 ② ③ ④
①3x-3.7=21.2 ② ③30%x+40×0.12=6
化简比0.15:3.5
①975÷75+15
②1.25×2.3×0.8
③ ×32+13÷
④ ÷[(1﹣ )÷5]
⑤解方程:3x﹣0.4=8
⑥解比例: :y= :2