①18.2+10×(0.96+1.04)
②6.21÷1.25÷0.8
③4.86×9.6+0.486×4
④1.3+2.9+8.7+13.31
⑤25×1.02
⑥21÷3.5+21÷1.5
54.4÷0.16=÷16 0.06÷1.5=÷15
3×0.4= 5÷0.1= 1-0.44= 1.25×0.08=
9÷0.3= 0.8×0.5= 10÷0.2= 2.4×5=