68.7-(44.6+0.375) ,5625÷75+25×32 ,(564-18×24)÷12等于几?递等式
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/09/27 05:49:25
68.7-(44.6+0.375) ,5625÷75+25×32 ,(564-18×24)÷12等于几?递等式
909-【36×(350÷14)】,(7×8715+3×8715)÷15 ,99×99+99 ,72×123 ,55×99?怎样简便怎么算,递等式.
909-【36×(350÷14)】,(7×8715+3×8715)÷15 ,99×99+99 ,72×123 ,55×99?怎样简便怎么算,递等式.
(1)
=909-(36×350÷2÷7)
=909-(36÷2×350÷7)
=909-(18×50)
=909-900
=9
(2)
5625÷75=75=25×3
25×32+25×3=25×35=875
(3)
=564÷12-18×24÷12
=47-18×2
=47-36
=9
(4)
=68.7-44.975
=23.725
(5)
=10×8715÷15
=10×581
=5810
(6)
=99×(99+1)
=99×100
=9900
(7)
55×99
=55×(100-1)
=5500-55
=5445
(8)
72×123
=9x8x(125-2)
=9x(1000-16)
=9000-144
=8856
=909-(36×350÷2÷7)
=909-(36÷2×350÷7)
=909-(18×50)
=909-900
=9
(2)
5625÷75=75=25×3
25×32+25×3=25×35=875
(3)
=564÷12-18×24÷12
=47-18×2
=47-36
=9
(4)
=68.7-44.975
=23.725
(5)
=10×8715÷15
=10×581
=5810
(6)
=99×(99+1)
=99×100
=9900
(7)
55×99
=55×(100-1)
=5500-55
=5445
(8)
72×123
=9x8x(125-2)
=9x(1000-16)
=9000-144
=8856
要使等式“(16×□-□÷1/9)×3=51”成立,□等于几?
1、在等式1/12等于几分之几“加”几分之几的括号内填入适当的不同自然数,使等式成立.(全部答案)
960÷(24×8)(巧算)(递等式)
12乘以25|24除以5|18,要递等式
900÷25的递等式算法
6.3×(10-3又2分之一÷6.5)÷1又5分之4 等于多少?递等式计算,
几分之几等于几:25等于12%等于十二除以( )等于( )(小数)
几÷40等于8分之5等于32分之几等于几分之40等于几小数
五个二分之一的等式,填+、-、×、÷、( )使等式等于6
18+25等于几
12+18等于几?
0.375+x等于12分之5 递等式 结果要分数