32a+a= 2.5×0.8= 0.36÷3.6= 9÷0.3=
4.5÷9= 12-4.9= 6.7×100= 3.5×4=
(下)
①0.25×16.2×4
②375+450÷18×25
③35.6- +34.4-
④ × + ÷
⑤[( - )× ]÷
⑥3.5× +5.5×80%+0.8