数学计算题。简算4道(不能简算不简算)!!!4道脱式计算!!谢谢了!! 要详细过程哦!!!
简算:(1)1.25×0.15×8(2)36×(5/18+4/9)(3)13.8-1/3-2/3(4)9.6×4.5+4.5×9.6+9.6脱式计算:(1)(1.2+2....
简算:
(1)1.25×0.15×8 (2)36×(5/18+4/9)
(3)13.8-1/3-2/3 (4)9.6×4.5+4.5×9.6+9.6
脱式计算:
(1)(1.2+2.4×1.5)÷2.4 (2)1.56÷[(2.5-1.2)×2.4]
(3)45÷[(4/5-2/3)×1.5] (4)(2-1/4×2/3)×(6/5-2/3) 展开
(1)1.25×0.15×8 (2)36×(5/18+4/9)
(3)13.8-1/3-2/3 (4)9.6×4.5+4.5×9.6+9.6
脱式计算:
(1)(1.2+2.4×1.5)÷2.4 (2)1.56÷[(2.5-1.2)×2.4]
(3)45÷[(4/5-2/3)×1.5] (4)(2-1/4×2/3)×(6/5-2/3) 展开
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简算:
(1) 1.25×0.15×8 =(1.25×8)×0.15=10x0.15=1.5
(2) 36×(5/18+4/9)=36x5/18+36x4/9=2x5+4x4=10+16=26
(3) 13.8-=13.8-(1/3+2/3)=13.8-1=12.8
(4) 9.6×4.5+4.5×9.6+9.6=2x(9.6x4.5)+9.6=2x43.2+9.6=86.4+9.6=96
脱式计算:
(1) (1.2+2.4×1.5)÷2.4=(1.2+3.6)÷2.4=4.8÷2.4=2
(2)1.56÷[(2.5-1.2)×2.4]=1.56÷(1.3x2.4)=1.56÷3.12=0.5
(3)45÷[(4/5-2/3)×1.5] =45÷[12/15-10/15)x1.5]=45÷(2/15x1.5)=45÷0.2=225
(4)(2-1/4×2/3)×(6/5-2/3)=(2-1/6)x8/15=11/6x8/15=88/90 =44/45
(1) 1.25×0.15×8 =(1.25×8)×0.15=10x0.15=1.5
(2) 36×(5/18+4/9)=36x5/18+36x4/9=2x5+4x4=10+16=26
(3) 13.8-=13.8-(1/3+2/3)=13.8-1=12.8
(4) 9.6×4.5+4.5×9.6+9.6=2x(9.6x4.5)+9.6=2x43.2+9.6=86.4+9.6=96
脱式计算:
(1) (1.2+2.4×1.5)÷2.4=(1.2+3.6)÷2.4=4.8÷2.4=2
(2)1.56÷[(2.5-1.2)×2.4]=1.56÷(1.3x2.4)=1.56÷3.12=0.5
(3)45÷[(4/5-2/3)×1.5] =45÷[12/15-10/15)x1.5]=45÷(2/15x1.5)=45÷0.2=225
(4)(2-1/4×2/3)×(6/5-2/3)=(2-1/6)x8/15=11/6x8/15=88/90 =44/45
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简算:
(1)1.25×0.15×8
=1.25×8×0.15
=10×0.15
=1.5
(2)36×(5/18+4/9)
=36×5/18+36×4/9
=10+16
=26
(3)13.8-1/3-2/3
=13.8-(1/3+2/3)
=13.8-1
=12.8
(4)9.6×4.5+4.5×9.6+9.6
=9.6×(4.5+4.5+1)
=9.6×10
=96
脱式计算:
(1)(1.2+2.4×1.5)÷2.4
=1.2÷2.4+3.4×1.5÷2.4
=0.5+1.5
=2
(2)1.56÷[(2.5-1.2)×2.4]
=1.56÷[1.3×2.4]
=1.56÷1.3÷2.4
=1.2÷2.4
=0.5
(3)45÷[(4/5-2/3)×1.5]
=45÷[2/15×1.5]
= 45÷1/5
=225
(4)(2-1/4×2/3)×(6/5-2/3)
=(2-1/6)×8/15
=11/6×8/15
=44/45
(1)1.25×0.15×8
=1.25×8×0.15
=10×0.15
=1.5
(2)36×(5/18+4/9)
=36×5/18+36×4/9
=10+16
=26
(3)13.8-1/3-2/3
=13.8-(1/3+2/3)
=13.8-1
=12.8
(4)9.6×4.5+4.5×9.6+9.6
=9.6×(4.5+4.5+1)
=9.6×10
=96
脱式计算:
(1)(1.2+2.4×1.5)÷2.4
=1.2÷2.4+3.4×1.5÷2.4
=0.5+1.5
=2
(2)1.56÷[(2.5-1.2)×2.4]
=1.56÷[1.3×2.4]
=1.56÷1.3÷2.4
=1.2÷2.4
=0.5
(3)45÷[(4/5-2/3)×1.5]
=45÷[2/15×1.5]
= 45÷1/5
=225
(4)(2-1/4×2/3)×(6/5-2/3)
=(2-1/6)×8/15
=11/6×8/15
=44/45
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简算:
⑴原式=(1.25×8)×0.15 ⑵原式=36×5/18 + 36×4/9
=10×0.15 =10+16
=1.5 =26
⑶原式=13.8-(1/3+2/3) ⑷原式=9.6×4.5+4.5×9.6+9.6×1
=13.8-1 =9.6×(4.5+4.5+1)
=12.8 =9.6×10
=96
脱式计算:
⑴原式=(2.4×0.5+2.4×1.5)÷2.4 ⑵原式=1.56÷[1.3×2.4]
=[2.4×(0.5+1.5)]÷2.4 =1.56÷1.3÷2.4
=2.4÷2.4×2 =1.2÷2.4
=2 =0.5
⑶原式=45÷[4/5×1.5-2/3×1.5] ⑷原式=(2-1/6)×(18/15-10/15)
=45÷[1.2-1] =11/6×8/15
=45÷0.2 =44/45
=225
⑴原式=(1.25×8)×0.15 ⑵原式=36×5/18 + 36×4/9
=10×0.15 =10+16
=1.5 =26
⑶原式=13.8-(1/3+2/3) ⑷原式=9.6×4.5+4.5×9.6+9.6×1
=13.8-1 =9.6×(4.5+4.5+1)
=12.8 =9.6×10
=96
脱式计算:
⑴原式=(2.4×0.5+2.4×1.5)÷2.4 ⑵原式=1.56÷[1.3×2.4]
=[2.4×(0.5+1.5)]÷2.4 =1.56÷1.3÷2.4
=2.4÷2.4×2 =1.2÷2.4
=2 =0.5
⑶原式=45÷[4/5×1.5-2/3×1.5] ⑷原式=(2-1/6)×(18/15-10/15)
=45÷[1.2-1] =11/6×8/15
=45÷0.2 =44/45
=225
参考资料: 多给点分好叭丶好累的说丨纯手打哇
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