25×26的简便计算 计算 1.8÷3×60% 2 5/6÷(1/3+75%) 3. 7.2×25%+2.8×25% 4. 125%×25%×4×8
计算 1.8÷3×60% 2 5/6÷(1/3+75%) 3. 7.2×25%+2.8×25% 4. 125%×25%×4×8
计算 1.8÷3×60% 2 5/6÷(1/3+75%) 3. 7.2×25%+2.8×25% 4. 125%×25%×4×8
1.8÷3×60% 2.5/6÷(1/3+75%) 3.7.2×25%+2.8×25% 4. 125%×25%×4×8
=8÷(3÷60%) =5/6÷(1/3+3/4) =25%×(7.2+2.8) =(125%×8)×(25%×4)
=8÷5 =5/6÷13/12 =25%×10 =10×1
=1.6 =5/6×12/13 =2.5 =10
=10/13
指数计算( 25^(1/3) - 125^(1/2) ) / 25^(1/4)
原式=(5^(2/3)-5^(3/2))/5^(1/2)
=5^(2/3-1/2)-5^(3/2-1/2)
=5^(1/6)-5
脱式计算【写过程】 1、4/5+8*45% 2、3.3÷2又1/5*5% 3、8.8*(1+25%) 4、(5/13-0.8)÷(60%-6%)
4/5+8*45%
=0.8+8x0.45
=0.8+3.4
=5.2
3.3÷2又1/5*5%
=3.3÷11/5x0.05
=1.5x0.05
=0.75
8.8*(1+25%)
=1.1x8x1.25
=1.1x10
=11
(5/13-0.8)÷(60%-6%)
=(25/65-52/65)÷27/50
=-27/65÷27/50
=-10/13
25×1/3÷5/2×3/10 简单计算
可以这么算
25×1/3÷5/2×3/10
=(25×2/5)×(1/3×3/10)
=10×1/10
=1
希望对你有帮助

计算题1. 1. 25+3/4-5/12-3/8 2. -12乘4-(-6)乘5 3. -10+8除(-2)3次方-4乘(-2)
1、25+3/4-5/12-3/8=24(23/24)24又24分之23
2、-12乘4-(-6)乘5=-18
3、-10+8除(-2)3次方-4乘(-2)=-3
[13*1/2-(3.8*1:25-5/4 7.2*5/4)]
[13*1/2-(3.8*1.25-5/4 +7.2*5/4)]
=1/4*[26-(3.8*5-5+7.2*5)]
=1/4*(26-19+5-36)
=1/4*(12-36)
=-(3-9)
=-6
1一2/3二0.27,(3一25℅)x=36,60℅x十25=5/6,5/2xx0.25=75℅
(1一2/3)x=0.27
1/3x=0.27
x=0.81
(3一25℅)x=36
2.75x=36
x=144/11
60℅x十25=5/6x
5/6x-60%x=25
7/30x=25
x=750/7
5/2xx0.25=75℅
5/2x=3
x=1.2
用简便计算 25*2.4/25-2.1 2又2/3-1.8+1又5/6 15.73-6.17+4.27-3.83
25*2.4/25-2.1
=2.4*25/25 - 2.1
=2.4-2.1
=0.3
.
2又2/3-1.8+1又5/6
=3 - 1/3 - 2+ 0.2 + 2 - 1/6
=3 - (1/3+ 1/6) + 1/5
=3 - 1/2 +1/5
=3 - 5/10 + 2/10
=3 - 3/10
=2又7/10
.
15.73-6.17+4.27-3.83
=15.73+ 4.27 -(6.17+3.83)
=20 -10
=10
25^1/2+(-1/125)^1/3-32^1/5×(2+10/25)^1/3
25^1/2+(-1/125)^1/3-32^1/5×(2+10/25)^1/3
=5+(-1/5)-2*(12/5)^1/3
=24/5-2*(12/5)^1/3
计算√75+4√(1/8)—(6√(1/3)+4√0.5)
√75+4√(1/8)—(6√(1/3)+4√0.5)
=5√3+4/2√2-(6/√3+4/√2)
=5√3+√2-(2√3+2√2)
=5√3+√2-2√3-2√2
=3√3-√2