①(1-3/2-3/8+7/12)×(-24)= ②(-8)×9×(-1.25)×(-1/9)=①(1-3/2-3/8+7/12)×(-24)=②(-8)×9×(-1.25)×(-1/9)=③(-306/11)÷9-(1/2+2/3-3/4-11/12)×(-24)=
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①(1-3/2-3/8+7/12)×(-24)= ②(-8)×9×(-1.25)×(-1/9)=①(1-3/2-3/8+7/12)×(-24)=②(-8)×9×(-1.25)×(-1/9)=③(-306/11)÷9-(1/2+2/3-3/4-11/12)×(-24)=
①(1-3/2-3/8+7/12)×(-24)= ②(-8)×9×(-1.25)×(-1/9)=
①(1-3/2-3/8+7/12)×(-24)=
②(-8)×9×(-1.25)×(-1/9)=
③(-306/11)÷9-(1/2+2/3-3/4-11/12)×(-24)=
①(1-3/2-3/8+7/12)×(-24)= ②(-8)×9×(-1.25)×(-1/9)=①(1-3/2-3/8+7/12)×(-24)=②(-8)×9×(-1.25)×(-1/9)=③(-306/11)÷9-(1/2+2/3-3/4-11/12)×(-24)=
1.:=-24+36+9-14
=7
2:=-1.25-8(9-1/9)
=1-1
=1
3:
简算:①1/2+1/3-1/2+1/3 ②4/9+4/9*3/8 ③3/8*6/7*5/12
①(1-3/2-3/8+7/12)×(-24)= ②(-8)×9×(-1.25)×(-1/9)=①(1-3/2-3/8+7/12)×(-24)=②(-8)×9×(-1.25)×(-1/9)=③(-306/11)÷9-(1/2+2/3-3/4-11/12)×(-24)=
6*《9/8-8/7》*《-12》 《3/1-3+6/1-12/7》*《-6》2次方
①(-3)*(-5/6)*(-9/5)*1/4 ② 5/12 - 8/15 * 1/4 *(-3/2) ③(-5)* 8 *(-0.25)*(-7)
①:2.84×7/3+4.16÷2又3/1②:12又5/4 - 3又13/5 - 2又13/8打不出横线,只能这样了.
简便运算 ① 7/25×101-7/25 ②(5/6+7/8-5/12)÷1/2 ③ 75%×3/7+1/7×3/4+3/7×0.75 = = =
①(-1/6-3/20+4/5-7/12)×(-15x4)②2÷(-3/7)×4/7÷(-1/7×5)③[31/2-(5/4÷7/5+7/2)]÷(-9/8)
在( )里填大于小于或等于 ①:7/8乘4/3( )7/8 ②:13/15除以1/6( )在( )里填大于小于或等于①:7/8乘4/3( )7/8②:13/15除以1/6( )13/15③:11/12乘2/3( )11/12除以2/3
七年级数学题(有理数的混合运算)①1/4-8.7-3.25+7/10②1-24×(-1+1又1/2-3/8+7/12)③2/3×(-6)-(-7)×(-2/3)-2/3×5④(125又5/7)÷(-5)⑤-6又2/3-8又2/3÷(-2)×2/13+2/3
(1又3/4-7/8-7/12)除以(-7/8)+(-2/3)
计算,①31/50+4/5-9/20②3/4-5/12+2/3③1-1/6-1/3-1/2④3/8+(7/12+5/6)急
(2/3-5/8)÷(7/12*1/2)
①8分之1×56×7分之2②6分之1×6%③12×(2分之1+4分之3)
①8分之1×56×7分之2②6分之1×6%③12×(2分之1+4分之3)
简便运算 2- 3/8除以7/17-1/7 5/12除以8+18*7/12 3/8除以【(1/2+1/3)*3/30】
阅读下面的解题过程:(-7/8)/(1又3/4-7/8-7/12)=(-7/8)/1又3/4-(-7/8/7/8-(-7/8)/7/12/7/12=-7/8*4/7+7/8*8/7+7/8*12/7=-1/2+1+3/2=2上述解题过程对不对,如果不对,
计算过程①(5/6--2/3)×0.9 ②1--7/9÷7/8
①8、11、13、17、20、( )A.18 B.20 C.25 D.28 ②0、1/6、3/8、1/2、1/2、( )A.5/12 B.7/12 C.5/13 D.7/13