电影院共有一级座位100个,二级座位240个,在放映《铁血英雄》时,票房正好收入5000元.本场观众最多有多少人?
计算:①+﹣= ②3.2﹣0.85﹣1= ③3.2×﹣÷2= ④1.725×4×0.5=⑤(+)÷= ⑥1.8×0.72+1.28×1.8= ⑦2÷(﹣)= ⑧57.6÷[(1.25+25%)×0.32]=.
直接写得数.3.86+2.4= 7.6﹣0.56= 4.5×102= 3.25+2.3+1.75=361+199= 7÷0.4= 4= =2.5×32= = 0.1÷0.01= 3.47﹣(2.5+0.47)=4768÷791≈ 12÷= 1÷== 5.58÷0.78≈4.98×7.11≈ = =
用你最喜欢的方法计算.1.25×0.25×32 (0.25+)÷(﹣)×0.25+×[(8.7﹣7.5)÷0.2]×0.153.75×58.3÷58.3×6.54÷3.75÷65.456×(+﹣)
简算下列各题548+468+52 9.14﹣1.34﹣4.57 77+2.7+2.3+233200÷4÷25 125×32×25 2009×95+5×2009.
0.4×99+0.4.