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.
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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+99,7
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.
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.
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.
(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
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.
0.375+5/8—5/8+0.375
2.4*(5-0.375+2.4*0.375)怎么简算
0.375+7分之4+8分之5
3/5:0.375的化简比,
222%×0.375+2.22×5/8
[(-5)^3*(-1/5)^2-5^2]-|1/4-0.375|
(3/4-12/5/0.375+6/5)/0.95-9/10
1-12分之5×0.375÷8分之5
将12.5g石灰石放入36.5g的稀盐酸中(杂质不反应、不溶于水),恰好完全反应,反应时间与剩余物的质量关系如下表反应时间t 0 1 2 3 4 5剩余物质量g 49 47.5 45 44.6 44.6 44.6求(1)生成二氧化碳的质
5/7除以【32乘(1-0.375)】等于多少
4/5*37.5%+3/8*32-0.375的简算
32乘0.375+8分之5乘32简便算法
1.8-0.375-5÷8=
[1/3+8/33(5/6-0.375)]/2/3
(0.375-1/9+5/24)÷1/72
2.75-(-1/2)+(-5/6)-(-0.375)-14/3
3|8×2|5+2|7×0.375=