5.5×2= 9.6÷4.8 =3﹣1.5×2= 2×3.1=2.4×0.5= 0.125×8﹣0.1= 0.48÷6= 6.4﹣4=0.6÷3+3= 0.91÷13= 3.25+0.75= 9.9﹣0.9÷0.1=2.5×3= 4.4÷(5×0.2)= 7×1.3= 0.96÷0.06=0.36×0.3= 0.35÷0.7= 4×0.8×0.25×1.25= 13+0.7÷0.7=
脱式计算. 26+14×(70﹣30) 48﹣40÷8×9 909×[(118+602)÷80].
计算下面各题 684÷19×63(347+459)÷62728﹣208÷26.
300与199的差除9999,结果是多少?
4×8﹣18 72÷9÷4 54÷9×7 5×6+12.
(248+406)×(606﹣549)