一只小猫一个月要吃30只鱼,一年小猫吃几只鱼?
48200﹣156×720÷39.
脱式计算
6.25﹣40÷16×2.5
1.8×0.2+2.2×25%
2700×(506﹣499)÷900
33.02﹣(148.4﹣90.85)÷2.5
18.1÷(3﹣0.299+0.23)×1.
(1)1375+625÷25×8
(2)32÷﹣17.5+2.5
(3)1×
+2
×
+
(4)3.7÷[(4﹣2.9)÷(
÷0.4)]
(5)(3﹣1.125+1)
(6)(+
+…+
)(1+
+…+
)﹣(1+
+…+
)(
+
+…+
)
(1)206×18+292
(2)14.4÷0.2×3
(3)
(4)
(5)2005×20062006﹣2006×20052005
(6)2006﹣2005+2004﹣2003+2002﹣2001+…+4﹣3+2﹣1.
62.8×19﹣8×62﹣62 3.64×[1÷(2﹣2.09)]
1.9﹣1.9×(1.9﹣1.9)(1﹣1%×70)÷0.32O