①2.7×1.5=.
②270×1.5=.
③40.5÷1.5=.
④0.405÷1.5=.
①ac+bc=(+)· c
②12.5×(k+6)=×+×
1.64+9.46= 10.4﹣6.3= 0.47×0.5= 120÷0.5=
15.8÷0.1= 0.65×101= 17.5×0= 64.8÷0.2=
①72.9÷0.9
②53.4×0.42
③67.5×3.2
④62.5×22.4+36.4÷0.5
⑤3.8×13.2+6.8×3.8