问题 口算题 口算。2.5×4=7.2÷0.2=1.25×0.8=4.5+7.5=1.24-0.04=1.23÷3=0.36÷0.3=12.4÷4=1.4×0.2=2÷0.25=7.2×0.1=2.3×0.25×4= 答案 10；36；1；12；1.2；0.41；1.2；3.1；0.28；8；0.72；2.3
