①5×0.08=
②4.3+7=
③0.9÷100=
④10×0.63=
⑤12×0.3+6=
⑥5.4÷100=
⑦2.5×8=
⑧4.2+1.8=
⑨2.4×5=
⑩1.2×5×100=
3.57,0.753,7.53,0.375、9.9、10。