30÷6= 24÷4= 54﹣33﹣11=5×9= 25÷5= 23+15﹣6=15÷5= 8×6= 78﹣(24﹣12)=
能简便计算的用简便方法计算.÷× ×+0.25×﹣ (+)÷×+÷ ÷[(+)×] ++++….
脱式计算.0.25×+2.5% 9.6﹣11÷7+×4 (×+)÷ ÷(﹣×)
计算(能简算的要简算)32×0.25×12.5= 10÷[﹣(÷+)]= 12.85﹣1.17﹣8.83+1.15= ÷[(+)÷]= 75%×3.6+0.75×+= (20.2×0.4+7.88)÷4.2=
用简便方法计算.7.09×98+7.09×2 82×++ 4××25×3.75 (1﹣﹣+)÷.
怎样简便就怎样算.(1)8470﹣104×65(2)168.1÷(4.3×2﹣0.4)(3)3.64÷4+4.36×0.25(4)(﹣)×4×9(5)1.3﹣3.79+9.7﹣6.21.