(1)[2/3-1/4-3/8+5/24]×48(2)25×3/4-(-25)×1/2+25×(-1/4)(3)-2四次方+3×(-1)两千次方-(-2)²(4)-1六次方-[1/2-1]×[-1/3]×(2-2三次方)(5)[1又21/24-(3/8+1/16-3/4]×(-4)²]÷5
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/29 00:24:37
(1)[2/3-1/4-3/8+5/24]×48(2)25×3/4-(-25)×1/2+25×(-1/4)(3)-2四次方+3×(-1)两千次方-(-2)²(4)-1六次方-[1/2-1]×[-1/3]×(2-2三次方)(5)[1又21/24-(3/8+1/16-3/4]×(-4)²]÷5
(1)[2/3-1/4-3/8+5/24]×48
(2)25×3/4-(-25)×1/2+25×(-1/4)
(3)-2四次方+3×(-1)两千次方-(-2)²
(4)-1六次方-[1/2-1]×[-1/3]×(2-2三次方)
(5)[1又21/24-(3/8+1/16-3/4]×(-4)²]÷5
(1)[2/3-1/4-3/8+5/24]×48(2)25×3/4-(-25)×1/2+25×(-1/4)(3)-2四次方+3×(-1)两千次方-(-2)²(4)-1六次方-[1/2-1]×[-1/3]×(2-2三次方)(5)[1又21/24-(3/8+1/16-3/4]×(-4)²]÷5
1、(16/24-6/24-9/24+5/24)×48=6/24×48=12
2、(25×3+25×2-25)×1/4=0
3、-16+3-4=-17
4、-1-(-1/2)×(-1/3)×(-6)=0
5、【45/24-(6/16+1/16-12/16)×16】÷5=(45/24+5)÷5=33/24
(1).12
(2)0
(3)-9
(4)0
(5)171/120
你想知道答案还是过程
1.原式=(16/24 - 6/24 - 9/24 + 5/24)×48=[(16-6-9+5)/24]×48=(6/24)×48=12
2.原式=25×3/4 + 25×1/2 + 25×(-1/4)=25×[(3/4) + (1/2) + (-1/4)]=25×[(3/4) + (2/4) - (1/4)]
=25×1=25
3.原式=-16 + 3×1 - 4=-17...
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1.原式=(16/24 - 6/24 - 9/24 + 5/24)×48=[(16-6-9+5)/24]×48=(6/24)×48=12
2.原式=25×3/4 + 25×1/2 + 25×(-1/4)=25×[(3/4) + (1/2) + (-1/4)]=25×[(3/4) + (2/4) - (1/4)]
=25×1=25
3.原式=-16 + 3×1 - 4=-17
4.原式=-1 - (-1/2)×(-1/3)×(2 - 8)=-1 - (1/6)×(-6)=-1 + 1=0
5.原式=[(45/24) - (6/16 + 1/16 - 12/16)×16]÷5=[(45/24) - (-5/16)×16]÷5
=[(45/24) + 5]÷5=11/8
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