① 9.7+3%= ②0.1×102= ③8.36-1.6= ④100%-0.1=
⑤ 7.8-8%= ⑥42π= ⑦1.5÷= ⑧×60%=
8.4÷0.1=
0.47×0=
16×25%=
2.64+4.36=
357÷50≈
<<<<<