用简便方法计算．1.7+3.98+1504750×515.73-3817+（4.27-2917）45×2.08+1.5×37.699999×77778+33333×66666；362+548×361362×548−18611×4+14×7+17×10+…+197×10012+14+18+116+132．

Question

用简便方法计算．

1.7+3.98+(1)/(50)	(47)/(50)×51
5.73-3(8)/(17)+（4.27-2(9)/(17)）	45×2.08+1.5×37.6
99999×77778+33333×66666	；(362+548×361)/(362×548−186)
(1)/(1×4)+(1)/(4×7)+(1)/(7×10)+…+(1)/(97×100)	(1)/(2)+(1)/(4)+(1)/(8)+(1)/(16)+(1)/(32)．

1.7+3.98+(1)/(50)	(47)/(50)×51
5.73-3(8)/(17)+（4.27-2(9)/(17)）	45×2.08+1.5×37.6
99999×77778+33333×66666	；(362+548×361)/(362×548−186)
(1)/(1×4)+(1)/(4×7)+(1)/(7×10)+…+(1)/(97×100)	(1)/(2)+(1)/(4)+(1)/(8)+(1)/(16)+(1)/(32)．

1.7+3.98+(1)/(50) (47)/(50)×511.7+3.98+(1)/(50)(1)/(50)(1)/(50)115050(47)/(50)×51(47)/(50)×51(47)/(50)47475050 5.73-3(8)/(17)+（4.27-2(9)/(17)） 45×2.08+1.5×37.65.73-3(8)/(17)+（4.27-2(9)/(17)）(8)/(17)+（4.27-2(9)/(17)）(8)/(17)881717(9)/(17)）(9)/(17)99171745×2.08+1.5×37.6 99999×77778+33333×66666 ；(362+548×361)/(362×548−186)99999×77778+33333×66666；(362+548×361)/(362×548−186)(362+548×361)/(362×548−186)(362+548×361)/(362×548−186)362+548×361362+548×361362×548−186362×548−186 (1)/(1×4)+(1)/(4×7)+(1)/(7×10)+…+(1)/(97×100) (1)/(2)+(1)/(4)+(1)/(8)+(1)/(16)+(1)/(32)．(1)/(1×4)+(1)/(4×7)+(1)/(7×10)+…+(1)/(97×100)(1)/(1×4)+(1)/(4×7)+(1)/(7×10)+…+(1)/(97×100)(1)/(1×4)111×41×4(1)/(4×7)+(1)/(7×10)+…+(1)/(97×100)(1)/(4×7)114×74×7(1)/(7×10)+…+(1)/(97×100)(1)/(7×10)117×107×10(1)/(97×100)(1)/(97×100)1197×10097×100(1)/(2)+(1)/(4)+(1)/(8)+(1)/(16)+(1)/(32)．(1)/(2)+(1)/(4)+(1)/(8)+(1)/(16)+(1)/(32)．(1)/(2)1122(1)/(4)+(1)/(8)+(1)/(16)+(1)/(32)．(1)/(4)1144(1)/(8)+(1)/(16)+(1)/(32)．(1)/(8)1188(1)/(16)+(1)/(32)．(1)/(16)111616(1)/(32)．(1)/(32)113232

Answer 1

1.7+3.98+150，=1.7+（3.98+0.02），=1.7+4，=5.7；4750×51，=4750×（50+1），=4750×50+4750×1，=47+4750，=474750；5.73-3817+（4.27-2917），=5.73+4.27-（3817+2917），=10-6，=4；45×2.08+1.5×37.6，=1.5...