1、 4×÷4×= 0.75 ÷0.125 = 1÷0.6= 3.05+6.2= 3.8×10%= 1-35%= (- )×= ×= 5—1.4—1.6= 20×500= 199+65= 1.5×= 24×= 2.4+1.6= ×= += 4.8÷0.12= += ÷ = 1.35×+1.35÷6= 0.99×9+0.99= 0.56÷8= ×÷2×15= 7×3.14×= 4÷-÷4= 4--= ÷ = 4×= 400÷25÷8= ×0.16×=
2、 -+= 2×= (-)×20= 1×6.4= 420+590= 72÷3= 6.3××0.1= 0.5÷÷= 0.125×16= 2.58+7.42= ()×4= = 77×= (-)×20= 1×6.4= 1÷10%= 1-0.92= 2+2%= ×0.12÷= 125×1.6= 12.56÷6.28= 8÷20= 2-= 100×1%= = 6.4-3.25= ÷-÷= 12.5×8= ×= (+)×24= 1÷× = ÷3-= 2006 − 619= 6
3、4-3.25= 9.3÷0.03= 88-55= 199+65= 2.5×0.4= 2÷0.01= ++= 571-402= (0.25++)×8= ×÷×= 0.62+0.8= ×1.25×8= 10÷0.01= 0.4÷0.9+= 10-4.7= 1÷= 1.05-0.86= 2÷2.875= 2- = 1÷- ÷1= 9.3÷0.03= ×4×= 25×24= 4.2÷0.2= 4- = (0.18+0.9)÷9 = 3 - = 10÷1%= 7.
4、2÷0.4= ×= 6×÷6×= 1÷7+= 8.1-6= 8×125%= 43+96= 2006-619= 8÷20= 7.06-0.06= ×60= 80÷= 1.5-= ÷25%= +÷2= ÷2= 0.18÷0.15×0= 3.6-1= 2.5×4= 75×10%= 7×3.14×= 1-= 9÷= ×15= 2.3×4= 2×0= 4÷4.875= 3.2×1.25= 0.8-= 4.2÷ = 7.4 + 6= 7-(1-)= 0.24×300=
5、 × = 0.4+ = (-)×18 = 0. 5÷ 0. 25 = += ÷6= ×= ÷= -×= - = +-= 74×99= 6.3÷0.1= - = 0.45×1000 = 9÷= 8.7-7= 786-298= 80÷= 12-= ×= ÷= 1×15= 10÷×10= 6-3.75= 9 + = 0.9-0.26= ×2÷×2= 4.2×3.2÷2.4= 21.7+3= 15-0.4= 305-199= 2.05×4=
6、2.4÷0.8= 7.5+= 3-2.6= 7.5÷0.25= 2.5×0.4= 0.78+0.12= 3200÷80= 6-3.75= -= 1-0.92= 2+2%= 11-4= 2×= 25×24= 7×÷7×= 1÷= ×= += ×÷×9= ×0.12÷= ÷= 1×1.2= 4.6+4 = 0÷= 0.8×0.9= 3.2÷0.4= ×60= 0×26= 119+24= 0.6×0.6=
7、 ×÷×= 4.2×0.5= (-)×30= ×÷2×15= 4×÷4×= 5÷6= 3-1.95= 6.3÷0.07= 3.7×7.3+7.3×6.3= 30%-20%= 3.14×25= 52= 125×24= 7.9×11-7.9= 10-0.9= 68%+32%= 1÷7×
8、0.5= 62= 3.14×10= 0.77+0.33= 26.26÷26= 1-95%= 3.14×32 33= 7÷1.4= 0.012= 0.22= 35×7×2= 45×101= ×= ×= 0×= ÷= ÷4= ×= 5÷= ÷= ÷= ÷= -= += 1÷= ×= ×=
9、 ×= ×= ×= 0.9-= 10--= ×12= 14×= += ×= ×= ×15= ×= ÷= ×= 1.25×16×8= ÷= (+)×4= -= ×= ÷= ÷= ÷= 15÷= 2÷= 8×-= ÷= ÷= ×4÷= (+0.5)×(-0.5)= (+)×24= 24.06+0.4= = ()×30= ×25= ×6= 2.8×25+12×2.5= 12.5×32×2.5=
10、 45×101= ×6= 270÷18= ×÷×= 18×(++)= 5.28―(0.28+0.2)= += (+)×12= 1.25××8= 7÷1.4= 72.8÷0.8= 0.77+0.33= ÷0.6= 8.2+0.54+0.46= -= -+= ×= ×= ×= ×= ×= ÷= ÷4= ×=
11、 5÷= ÷= ÷= -= ×8= ×2= ×13= ×= ÷3= 36×= ÷= 5÷6= ÷5= ×18= 8.2+0.54+0.46= 26×= ×2= ×= ÷= 24÷= ×= += 4.57+6.43= 7.9
12、×11-7.9= ×= ÷8= += ×15= += ×= 14×= 1÷= ÷4= 3-1.95= -= ÷= ×27= ×3= +3= 6÷= 0÷= 6.3÷0.07= 125×8= 26×= - = ÷=
13、 ×= 6×= ×= +6= ×= ×4= 0.5-= ×= 100÷= 88÷= += 4×= 12÷= 25×4= 10÷= 25×24= 4.2÷0.2= 72×0.4= ÷4= ×= ×60= ×= 12÷= ×8=
14、 ×11= 10÷= ×= ÷= ×= ×= 0×= 6÷0.5= 8.4÷4.2= 5×= ×= ÷2= ×= 72÷0.4= 5-= ÷1= 12÷= 1÷= ×= 28÷= 0×= ×=
15、 -= ×= 24×5= ÷= ×= -= 1-= 9÷= 636-198= 3.6÷0.36= 7÷14= 1-+= 1+= 1×= 1÷= 1-= 37×5= 9-0.9= (+)×24= 24×= 0.2-= 1+×= 12-0.2= 1.2
16、5×8= ×= 910÷70= 78-0.98= -+= 3÷8= 10÷0.1= 0.8×12.5= += 7÷1.4= ÷= 72.8÷0.8= 0.77+0.33= (+)×12= ÷0.6= 1.25××8= 10-0.9= -= 4.57+6.43= 7.9×11-7.9= 3.14×32= 3+-3+= 10.1×30= 2÷0.2-2= ×=
17、 1.8×4×0.5= 1.5-1.5×0.2= 578+216= 85.2-3.25= 3.2-= ×81= += 2×2= 0.99×9+0.99= ×= 1×8+1×2= 82.5-3.25= ÷7= 3005-899= 7.25+2.75= 9.8÷98= 0.125×9×8 = = 5-= ×= 2-×2= +=
18、 += 12-= ×= 13×(2+) 24.06+0.4= = ()×30= ×25= ×6= 2.8×25+12×2.5= 12.5×32×2.5= 5-= 45×101= ×6= 270÷18= 1.25-0.25+0.75= 8.1÷0.03= 1.5×0.5= 10÷0.5= 0.5÷10= 410-210=






