脱式计算[1–(+)]÷ –×÷3 (1–×)÷ ÷×7–(+) ×– 25÷(–) +– (–)÷(+) [1–(+)]÷3.5 [(1–)×]÷4 ++×[÷(+)] 12÷(1–) [(1–×)÷ [(1–)×]÷44–÷– +÷+ ×+÷ ×[÷(×)] (+)×15×11 [1–(+)]÷ –×÷3×(-) ××10 ××50 ×(1+)××3 18÷÷ (+)÷ [4-(-)]××× ÷0.6× ×÷ (2-0.6)÷÷(+) ×0.375÷ 4÷-0.6 ×+×÷(+)×15 ×× ××14 ÷[(+)]×15 (-)÷(4+) ×÷× (+)×(÷) 15-÷(-) (+)×÷ [4×(-)] × 7.8÷〔1.6×(1-)+6.8 〕 ×2.8÷ ( 1.5 - 0.3 ) + (-) ÷ (-×) ÷ (-) ÷〔×(+)〕 ÷×- ÷-+ (+)×(-) 1110÷〔56×(-)〕 (-)÷- 15×÷(-)×5÷×5 (+)×(4-) (-)÷+ 5-(-×) ×÷× (-)÷(2-) ÷(1――) 〔1-(-)〕÷ 2-÷- ÷〔(-)×〕 25×÷× (1–×)÷ ÷×7(–)÷(+) [1–(+)]÷3.5÷[(+)×] (×+)÷ ÷[(+)×]2- ÷- (0.75- )×(+) [1-(+)] ÷(+)÷- ÷〔(-)× 2.05-0.81÷2.7×4.513.09-8.12-4.88 12×103-4500÷75 37.5+19.5÷2.5×4 0.4×(3.85-0.4)÷13.8 23×4.4÷(3.3+5.9) 1.56÷0.3×(0.74-0.58)8358-11859÷59×41 18÷1.5-0.5×0.3 1.9-17.86÷9.4+19 8853-11457÷57×41 (6.25-40÷16)×3.5 1÷2.5+2.5×4 3.2×0.25-2÷4 14.8-44.08÷5.8 4.8÷(0.3×0.2+0.18) 用简便措施计算: (–)×70 97× ×8+×2 15×+15×(+–)×72 72×(–+) (+)×9+ 30×(–+)12×(–+) +×+ 48×(–+) 30×(+–)÷9+× 24×(+) (+)×60–27 5––×(9+)– ÷+× 2–×– +÷+ ×+× ++÷ -- +++ -(-) 24×(+-) ++- ×43+43× (+)×72 6.13-- --7.25 55×(-) (-)×21+ ()÷ 24× 16× ( 18×( ×1.8+19.2× 15.64-+4.36- ( 60×( ( 20-[( (+++)× [+(2-0.5)÷]÷100.2 6.8×6.8 +4×6.8-6.8 ×+5.2×+1÷ 0.25×12.5÷ 974×74+974+974×25 125×32×25 25×37×0.4 15.7-2.39-3.61 101×0.67 2.5×7.3×4 27.5×1.25×8 1.25×3.2×2.5 8.9×99+8.9 87× 125×+875÷4 76×+24×0.125 32.6+277+67.4 3452-1998 1159+29...