计算下面各题,能简算的要简算.30×(500-400÷25) 36×205 23×4×8×25 75.64-(5.64-4.82) 42.45-2
计算下面各题,能简算的要简算.30×(500-400÷25)36×20523×4×8×2575.64-(5.64-4.82)42.45-23.41+7.55(40-4)×...
计算下面各题,能简算的要简算.30×(500-400÷25) 36×205 23×4×8×25 75.64-(5.64-4.82) 42.45-23.41+7.55 (40-4)×25.
展开
1个回答
展开全部
(1)30×(500-400÷25), =30×(500-16), =30×484, =14520; (2)36×205, =36×(200+5), =36×200+36×5, =7200+180, =7380; (3)23×4×8×25, =(23×8)×(25×4), =184×100, =18400; (4)75.64-(5.64-4.82), =75.64-5.64+4.82, =70+4.82, =74.82; (5)42.45-23.41+7.55, =42.45+7.55-23.41, =50-23.41, =26.59; (6)(40-4)×25, =40×25-4×25, =1000-100, =900. |
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询