发布网友 发布时间:2024-10-24 00:47
共1个回答
热心网友 时间:2024-10-28 08:29
33️99️12的简便运算方法
33️99️12
=33x+33x3x12
=33x+33x36
=33x(+36)
=33x100
=3300
33×160+16×170
=16×(33×10+1×170)
=16×(330+170)
=16×500
=9000
99️9994的简便方法
99×99+94
=99×99+99-5
=99×(99+1)-5
=99×100-5
=9900-5
=95
45️3636️5499️
=36(45+54)+99×
=99×36+99×
=99(36+)
=99×100
=9900
73x99+99
=73x(100-1)+(100-1)
=7300-73+100-1
=7400-74
=7326
(7.52.3️1.4)0.16
=(7.5-3.22)÷0.16
=4.26÷0.16
=26.625
此题直接算即可
(7.52.8️1.4)0.16的简便运算方法
(7.52.8️1.4)0.16
=(7.5-3.92)÷0.16
=3.58÷0.16
=22.375
99️99199
=99X(100一1)+199
=99X100-99X1+199
=9900+(199-99)
=9900+100
=10000
144️4590️28
= 144️4545X2️28
= (1442️28)️45
=200X45 =9000
=0.1111(5.1+7*0.7)
=0.1111(5.1+4.9)
=0.1111*10
=1.111
热心网友 时间:2024-10-28 08:29
33️99️12的简便运算方法
33️99️12
=33x+33x3x12
=33x+33x36
=33x(+36)
=33x100
=3300
33×160+16×170
=16×(33×10+1×170)
=16×(330+170)
=16×500
=9000
99️9994的简便方法
99×99+94
=99×99+99-5
=99×(99+1)-5
=99×100-5
=9900-5
=95
45️3636️5499️
=36(45+54)+99×
=99×36+99×
=99(36+)
=99×100
=9900
73x99+99
=73x(100-1)+(100-1)
=7300-73+100-1
=7400-74
=7326
(7.52.3️1.4)0.16
=(7.5-3.22)÷0.16
=4.26÷0.16
=26.625
此题直接算即可
(7.52.8️1.4)0.16的简便运算方法
(7.52.8️1.4)0.16
=(7.5-3.92)÷0.16
=3.58÷0.16
=22.375
99️99199
=99X(100一1)+199
=99X100-99X1+199
=9900+(199-99)
=9900+100
=10000
144️4590️28
= 144️4545X2️28
= (1442️28)️45
=200X45 =9000
=0.1111(5.1+7*0.7)
=0.1111(5.1+4.9)
=0.1111*10
=1.111