= 0.4+55%= 1.5-= 62.8÷3.14=
8×0.99= 1.05÷0.15= =
92-72= 6-3.7-2.3=
×12= 1÷= ÷= 0×=
×= 24×= ÷6= ×2.4=
①
②
③