小明拿了100元钱去超市买笔记本,每个笔记本9元,小明可以买几个笔记本?
计算下面各题,能简算的请用简便方法计算.8.38+9.43+6.62 5.86﹣1.77+2.54 47.2+8.6﹣7.2 28.6﹣3.8﹣14.6﹣6.2 8﹣2.6﹣1.77 7.4+0.93﹣4.3617.34﹣(9.8+6.34) 0.93+5.45+7.07+4.55.
计算下面各题.13.4×5.6×2.5 6.75×0.12+15.73 3.25×7.4﹣8.51 8.7×3.3﹣15.2×2.6 45.2﹣14.36+17.6 9.43×61+24.77.
7.6+3.9÷0.3(14.7+5.6)÷762.7÷8÷1.254.6÷0.08﹣20.8.
递等式计算,能简便的就简便计算.(1)9.2×1.5÷3(2)19.03﹣5.53﹣0.37(3)86÷(8.6×25)(4)6.3×101﹣6.3(5)1.8÷3.6×(0.9+1.2)(6)12÷0.125(7)18.21+25.93+1.79(8)59.6×18+59.6×81+59.6(9)33.02﹣(148.4﹣90.85)÷2.5(10)[33.3﹣(17.4+3.1)]×6.05.
下面各题,怎样简便就怎样算.(1)2.15+8.73+1.27+7.85 (2)11.87﹣(8.2+1.87) (3)5.42﹣3.87﹣1.13(3)4.38﹣1.56+0.62﹣0.44 (4)0.4×270×2. (6)(40+1.25)×8(7)(12.5﹣0.05)×8 (8)2.6×8.5+8.5×7.4 (9)9.9×6.9﹣6.9×3.9(10)5.6×99+5.6 (11)2.5×(1.9+1.9+1.9+1.9) (12)7.2÷1.25÷8.