简便方法计算(过程) 25.5^2 +51 * 24.5+24.5^2 (102*98+4)/(252^2 -248^2
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/04 08:31:01
简便方法计算(过程) 25.5^2 +51 * 24.5+24.5^2 (102*98+4)/(252^2 -248^2) (这是一个分数)
![简便方法计算(过程) 25.5^2 +51 * 24.5+24.5^2 (102*98+4)/(252^2 -248^2](/uploads/image/z/13018261-13-1.jpg?t=%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97%EF%BC%88%E8%BF%87%E7%A8%8B%EF%BC%89+25.5%5E2+%2B51+%2A+24.5%2B24.5%5E2+%28102%2A98%2B4%29%2F%28252%5E2+-248%5E2)
25.5^2 +51 * 24.5+24.5^2
=25.5^2 +2*25.5 * 24.5+24.5^2
=(25.5+24.5)^2
=50^2
=2500
(102*98+4)/(252^2 -248^2)
=[(100+2)(100-2)+4]/[(252+248)(252-248)]
=(100^2-2^2+4)/(500*4)
=100^2/(100*5*4)
=100/20
=5
=25.5^2 +2*25.5 * 24.5+24.5^2
=(25.5+24.5)^2
=50^2
=2500
(102*98+4)/(252^2 -248^2)
=[(100+2)(100-2)+4]/[(252+248)(252-248)]
=(100^2-2^2+4)/(500*4)
=100^2/(100*5*4)
=100/20
=5
简便方法计算(过程) 25.5^2 +51 * 24.5+24.5^2 (102*98+4)/(252^2 -248^2
简便方法计算(要过程) -0.25^14 * 2^30
(28+2/7×7/8)×1/4用简便方法计算要有过程
98×99分之2简便方法计算
1.37^2+2*1.37*6.83+8.63^2=?(简便方法计算)要过程
(15/2+35/4)×2/5用简便方法计算要有过程
用简便方法计算51^2-51×98+49^2
53/4-31/2+51/2 用简便方法计算
用简便方法计算50×(2×4)×25
1:用简便方法计算写出主要计算过程:(1)5.24+7分之3+2.76+7分之4 (2)24分之29-(24分之5-11
简便方法计算99^2-101^2
(999^2)-(1000^2) 简便方法计算