人教版小学数学五年级口算练习试题[全套]-_小学1-6年级全部试卷_数学_五年级_3-10-3、小学五年级数学上册_3-10-3-2、练习题、作业、试题、试卷_人教版_专项练习

45+15×6= 36×11= 72÷24 = 0×518= 250÷5×8= 1025÷25= 85÷17 = 10×76= 6×5÷2×4= 336+70= 90÷15 = 36×10= 30×3+8= 25×9×4= 96÷16 = 15×6= 400÷4+20×5= 200-33×3= 78÷26 = 24×3= 10+12÷3+20= 3020-1010= 51÷17 = 5×18= (80÷20+80)÷4= 12×50= 80÷40 = 26×4= 70+(100-10×5)= 25×8= 100÷20 = 7×15= 360÷40= 23×11= 100÷4 = 32×30= 40×20= 125÷25= 240÷40 = 40×15= 80-25= 4200-2200= 920÷4 = 60×12= 70+45= 220+80= 300÷60= 23×30= 90×2= 20×8×5= 64÷2 = 30×50= 16×6= 600-3×200= 64÷4 = 5×700= 300×6= 20+20÷2= 50÷5 = 45+15×6= 540÷9= 35-25÷5= 60÷8 = 250÷5×8= 30×20= 47.36+8-40= 96÷4 = 6×5÷2×4= 400÷4= 48.2800÷40= 90÷6 = 30×3+8= 350-80= 49.98÷14 = 400+80 = 400÷4+20×5= 160+70= 50.96÷24 = 400-80 = 10+12÷3+20= 18-64÷8= 51.56÷14 = 40×80 = (80÷20+80)÷4= 42÷6+20= 52.65÷13 = 400÷80 = 70+(100-10×5)= 40-5×7= 53.75÷15 = 48÷16 = 360÷40= 80+60÷3= 54.120÷24 = 96÷24 = 40×20= 41+18÷2= 55.200÷25 = 160×5= 80-25= 75-11×5= 56.800÷16 = 4×250= 70+45= 42+7-29= 57.840÷21 = 120×25= 90×2= 5600÷80= 58.560÷14 = 36×11= 16×6= 25×16= 59.390÷13 = 1025÷25= 300×6= 120×25= 60.600÷15 = 336+70= 540÷9=30×20= 56÷14 = 40×80 = 80-25= 400÷4= 65÷13 = 400÷80 = 70+45= 350-80= 75÷15 = 48÷16 = 90×2= 160+70= 120÷24 = 96÷24 = 16×6= 18-64÷8= 200÷25 = 160×5= 300×6= 42÷6+20= 800÷16 = 4×250= 540÷9= 40-5×7= 840÷21 = 0×518= 30×20= 80+60÷3= 560÷14 = 10×76= 400÷4= 41+18÷2= 390÷13 = 36×10= 350-80= 75-11×5= 600÷15 = 15×6= 160+70= 42+7-29= 72÷24 = 24×3= 18-64÷8= 5600÷80= 85÷17 = 5×18= 42÷6+20= 25×16= 90÷15 = 26×4= 40-5×7= 25×9×4= 96÷16 = 7×15= 80+60÷3= 200-33×3= 78÷26 = 32×30= 41+18÷2= 3020-1010= 51÷17 = 40×15= 75-11×5= 12×50= 80÷40 = 60×12= 42+7-29= 25×8= 100÷20 = 23×30= 5600÷80= 23×11= 100÷4 = 30×50= 25×16= 125÷25= 240÷40 = 5×700= 120×25= 4200-2200= 920÷4 = 45+15×6= 36×11= 220+80= 300÷60= 250÷5×8= 1025÷25= 20×8×5= 64÷2 = 6×5÷2×4= 336+70= 600-3×200= 64÷4 = 30×3+8= 25×9×4= 20+20÷2= 50÷5 = 400÷4+20×5= 200-33×3= 35-25÷5= 60÷8 = 10+12÷3+20= 3020-1010= 36+8-40= 96÷4 = (80÷20+80)÷4= 12×50= 2800÷40= 90÷6 = 70+(100-10×5)= 25×8= 98÷14 = 400+80 = 360÷40= 23×11= 96÷24 = 400-80 = 40×20= 125÷25=4200-2200= 920÷4 = 17×40＝ 0.51÷17＝ 220+80= 300÷60= 100－63＝ 32.8＋19＝ 20×8×5= 64÷2 = 3.2＋1.68＝ 5.2÷1.3＝ 600-3×200= 64÷4 = 2.8×0.4＝ 1.6×0.4＝ 20+20÷2= 50÷5 = 14－7.4＝ 4.9×0.7＝ 35-25÷5= 60÷8 = 1.92÷0.04＝ 1÷5＝ 36+8-40= 96÷4 = 0.32×500＝ 6÷12＝ 2800÷40= 90÷6 = 0.65＋4.35＝ 0.87－0.49＝ 98÷14 = 400+80 = 10－5.4＝ 17×40＝ 96÷24 = 400-80 = 4÷20＝ 100－63＝ 56÷14 = 40×80 = 3.5×200＝ 3.2＋1.68＝ 65÷13 = 400÷80 = 1.5－0.06＝ 2.8×0.4＝ 75÷15 = 48÷16 = 0.75÷15＝ 14－7.4＝ 120÷24 = 96÷24 = 0.4×0.8＝ 1.92÷0.04＝ 200÷25 = 160×5 = 4×0.25＝ 0.32×500＝ 800÷16 = 4×250= 0.36＋1.54＝ 0.65＋4.35＝ 840÷21 = 0×518= 1.01×99＝ 10－5.4＝ 560÷14 = 10×76= 420÷35＝ 4÷20＝ 390÷13 = 36×10= 25×12＝ 3.5×200＝ 600÷15 = 15×6= 135÷0.5＝ 1.5－0.06＝ 72÷24 = 24×3= 3/4 + 1/4 = 0.75÷15＝ 85÷17 = 5×18= 2 + 4/9 = 0.4×0.8＝ 90÷15 = 26×4= 3 - 2/3 = 4×0.25＝ 96÷16 = 7×15= 3/4 - 1/2= 0.36＋1.54＝ 78÷26 = 32×30= 1/6 + 1/2 -1/6 = 1.01×99＝ 51÷17 = 40×15= 7.5-(2.5+3.8)= 420÷35＝ 80÷40 = 60×12= 7/8 + 3/8 = 25×12＝ 100÷20 = 23×30= 3/10 +1/5 = 135÷0.5＝ 100÷4 = 30×50= 4/5 - 7/10 = 3/4 + 1/4 = 240÷40 = 5×700= 2 - 1/6 -1/3 = 2 + 4/9 =3 - 2/3 = 4×0.25＝ 0.32×500＝ 6÷12＝ 3/4 - 1/2= 0.36＋1.54＝ 0.65＋4.35＝ 0.87－0.49＝ 1/6 + 1/2 -1/6 = 1.01×99＝ 10－5.4＝ 17×40＝ 7.5-(2.5+3.8)= 420÷35＝ 4÷20＝ 100－63＝ 7/8 + 3/8 = 25×12＝ 3.5×200＝ 3.2＋1.68＝ 3/10 +1/5 = 135÷0.5＝ 1.5－0.06＝ 2.8×0.4＝ 4/5 - 7/10 = 3/4 + 1/4 = 0.75÷15＝ 14－7.4＝ 2 - 1/6 -1/3 = 2 + 4/9 = 0.4×0.8＝ 1.92÷0.04＝ 0.51÷17＝ 3 - 2/3 = 4×0.25＝ 0.32×500＝ 32.8＋19＝ 3/4 - 1/2= 0.36＋1.54＝ 0.65＋4.35＝ 5.2÷1.3＝ 1/6 + 1/2 -1/6 = 1.01×99＝ 10－5.4＝ 1.6×0.4＝ 7.5-(2.5+3.8)= 420÷35＝ 4÷20＝ 4.9×0.7＝ 7/8 + 3/8 = 25×12＝ 3.5×200＝ 1÷5＝ 3/10 +1/5 = 135÷0.5＝ 1.5－0.06＝ 6÷12＝ 4/5 - 7/10 = 3/4 + 1/4 = 0.75÷15＝ 0.87－0.49＝ 2 - 1/6 -1/3 = 2 + 4/9 = 0.4×0.8＝ 17×40＝ 0.51÷17＝ 3 - 2/3 = 4×0.25＝ 100－63＝ 32.8＋19＝ 3/4 - 1/2= 0.36＋1.54＝ 3.2＋1.68＝ 5.2÷1.3＝ 1/6 + 1/2 -1/6 = 1.01×99＝ 2.8×0.4＝ 1.6×0.4＝ 7.5-(2.5+3.8)= 420÷35＝ 14－7.4＝ 4.9×0.7＝ 7/8 + 3/8 = 25×12＝ 1.92÷0.04＝ 1÷5＝ 3/10 +1/5 = 135÷0.5＝ 0.32×500＝ 6÷12＝ 4/5 - 7/10 = 3/4 + 1/4 = 0.65＋4.35＝ 0.87－0.49＝ 2 - 1/6 -1/3 = 2 + 4/9 = 10－5.4＝ 17×40＝ 0.51÷17＝ 3 - 2/3 = 4÷20＝ 100－63＝ 32.8＋19＝ 3/4 - 1/2= 3.5×200＝ 3.2＋1.68＝ 5.2÷1.3＝ 1/6 + 1/2 -1/6 = 1.5－0.06＝ 2.8×0.4＝ 1.6×0.4＝ 7.5-(2.5+3.8)= 0.75÷15＝ 14－7.4＝ 4.9×0.7＝ 7/8 + 3/8 = 0.4×0.8＝ 1.92÷0.04＝ 1÷5＝ 3/10 +1/5 =4/5 - 7/10 = 3/4 + 1/4 = 104×5= 572×8= 2 - 1/6 -1/3 = 2 + 4/9 = 847×4= 372×0= 0.51÷17＝ 3 - 2/3 = 8×42= 153×46= 32.8＋19＝ 3/4 - 1/2= 5.78×92= 173×10= 5.2÷1.3＝ 1/6 + 1/2 -1/6 = 78×2= 15×80= 3 1.6×0.4＝ 7.5-(2.5+3.8)= 245×0= 652007×0= 4.9×0.7＝ 7/8 + 3/8 = 306×103×0= 384÷4= 1÷5＝ 3/10 +1/5 = 132×6= 888÷74= 6÷12＝ 4/5 - 7/10 = 350×1000= 592÷37= 0.87－0.49＝ 2 - 1/6 -1/3 = 317×4= 384÷32= 17×40＝ 39×4= 1.52×6= 1846÷10= 100－63＝ 51×9= 125×0.8= 468÷39= 3.2＋1.68＝ 77×7= 302×783×0= 1460÷20= 2.8×0.4＝ 874×3= 264×8= 50÷2= 14－7.4＝ 304×5= 5.76×9= 78÷4= 1.92÷0.04＝ 106×10= 3875×0= 24.5÷14= 0.32×500＝ 178×3= 1.854×0×100= 49.5÷3= 0.65＋4.35＝ 78×9= 937×4= 153÷0= 10－5.4＝ 1.573×6= 285×4= 462÷5= 4÷20＝ 3.52×100= 134×3= 374÷10= 3.5×200＝ 3.54×8= 125×8= 73÷9= 1.5－0.06＝ 43.87×4= 25×4= 10÷3= 0.75÷15＝ 163×3= 300×52= 27×3= 0.4×0.8＝ 724×7= 5×42= 90÷15= 4×0.25＝ 43.7×8= 1.35×9= 48÷4= 0.36＋1.54＝ 46.9×8= 15×8= 640÷16= 1.01×99＝ 78×9= 125×4= 39÷3= 420÷35＝ 250×0.4= 8.456×1000= 24×20= 25×12＝ 24×5= 21×8= 32×3= 135÷0.5＝ 37×8= 32×0.1= 48÷16=12×8= 0.35＋2.7＝ 46.7－3.8= 1.25×0.8= 27×3= 4.6－1.9＝ 12.8÷4= 3.2÷0.04= 56÷14= 0.83－0.3＝ 5.2÷13= 0÷1.7= 24÷8= 3＋0.05＝ 12.5÷5= 0.22×102= 14×2= 7.2－3.8＝ 1.64÷41= 9÷0.25÷4= 83－45= 0.07＋0.6＝ 10÷20= 0.25×3.97×4= 560÷80= 1.39－0.39＝ 24÷15= （1.2＋8.8）×0.4= 96÷24= 10－5.4＝ 8.65×10= 50＋160÷40= 40÷20= 4.7+2.3= 0.35×0.6= （58+370）÷（64-45）= 40×30= 4.5×2= 3.08×0.01= 120-144÷18+35 37＋26= 6.9－2.5= 4.95×1000= 347+45×2-4160÷52 76－39= 7.2×0.8= 6.9×0.1= （58+37）÷（64-9×5） 605＋59= 6×3.4= 0.4×0.5= 95÷（64-45） 30×23= 0.62－0.32= 2.4÷0.8= 178-145÷5×6+42 0.75×100= 1.4×0.5= 10.8÷9= 420+580-64×21÷28 12×8= 0.02×0.5= 9.6÷0.8= 812-700÷（9+31×11） 27＋32= 3.6÷0.3= 0.108÷2= （136+64）×（65-345÷23） 48＋27= 6.3÷7= 4.95÷0.9= 85+14×（14+208÷26） 4500×20= 5.6÷100= 9.65÷0.1= 1.2×2.5+0.8×2.5 73＋15 = 0.75÷0.25= 0.325×100= 8.9×1.25-0.9×1.25 120×600 = 0.125×8= 2.5×8= 12.5×7.4×0.8 200×360= 4.8÷0.3= 0.56÷0.7= 9.9×6.4-（2.5+0.24） 6800×400= 0.96÷2= 0.125×4= 6.5×9.5+6.5×0.5 280＋270= 0.56÷28= 3.28×0.1= 0.35×1.6+0.35×3.4 4×2500= 0.36÷0.4= 3.9÷0.13= 6.72-3.28-1.72 6000÷40= 0.64÷0.8= 7.2×0.1= 0.45+6.37+4.55 5×1280= 0.72÷3.6= 0.01×0.1= 5.4+6.9×3-（25-2.5） 4.3＋2.7＝ 3.6÷24= 0.25×0.4= 2×41846-620-380 0.75＋0.25＝ 0.8×1.1= 1.6÷0.8= 4.8×46+4.8×54 4－0.26＝ 7.2+12.8= 1÷2.5= 0.8+0.8×2.53.4-1.4= 0.7×4= 7500÷250= 0.25×100= 7.82-7.2= 0.05×4= 3.8+1= 3.4-2.8= 2.19+9.1= 4×0.3= 0.95-0.05= 0.6-0.37= 10.1-0.89= 430-250= 450+780= 0.052×10= 0.68+0.42= 0.17+0.06= 3.1+0.3= 10+0.08= 8.1-5.1= 1.02-0.09= 3+0.3= 1-0.75= 0.728-0.24= 7200÷800= 630÷9= 0.5×1000= 0.8+0.18= 0.17+0.6= 4.5-0.4= 0.82+0.3= 0.89-0.25= 0.83-0.6= 9.5-5= 13.5+6.5= 1-0.98= 17×300= 330×9= 3.05×100= 0.048+0.52= 0.98-0.09= 9.53-1.53= 1.2-0.8= 5×400= 0.2+0.78= 9.5-0.5= 21.6-12.6= 19.9+11.1= 600×700= 3.5+2.4= 63÷100= 187÷1000= 10.2+0.02= 1-0.95= 0.83-0.5= 1+3.89= 0.15+0.7= 0.3+0.27= 0.76+0.14= 0.081×10= 670+250= 0.47+0.13= 80÷1000= 75÷10= 10.2+0.2= 4.5+4= 2.7+0.4= 0.96÷0.8= 9.2-6= 4-0.6= 0.72-0.43= 0.8×7= 8500÷500= 0.95+0.05= 30×100= 1.5×7= 3.2-3.2= 2.5+3.2= 0.92-0.2= 1.32×8= 3.7+2.3= 0.74+0.16= 3.5+4.8= 0.7×8= 25×100= 23×100= 3.5+2.4= 10.3×2= 3.2-0.32= 9.8-4.8= 5+0.07= 5×0.6= 2+2.8= 480÷40= 1-0.61= 0.9×0.3= 380-290= 0.53÷100= 0.47+0.23= 3.5×0.2= 0.35+0.5= 5.1+2.3= 0.25+0.75= 2.01×0= 0.35+0.63= 125×80= 3.7+0.33= 10×0.05= 3500÷70= 0.078÷10= 0.51+0.33= 0.13×7= 3.1+3= 0.52+0.4= 1-0.6= 0.21×100= 3.8+0.38= 70×12= 8-4.6=5.8-3.6= 0.125×4= 0.72÷3.6= 0.01×0.1= 0.52+0.4= 3.28×0.1= 3.6÷24= 0.25×0.4= 6.45+5.5= 3.9÷0.13= 0.8×1.1= 1.6÷0.8= 4.5-1.3= 7.2×0.1= 7.2+12.8= 1÷2.5= 3.4-2.8= 0.01×0.1= 46.7－3.8= 1.25×0.8= 9.53-1.53= 0.25×0.4= 12.8÷4= 3.2÷0.04= 8.8-6.7= 1.6÷0.8= 5.2÷13= 0÷1.7= 10+0.08= 1÷2.5= 12.5÷5= 0.22×102= 9.5-7.3= 1.25×0.8= 1.64÷41= 0.081×10= 7.2+0.8= 3.2÷0.04= 10÷20= 75÷10= 7.82+0.3= 0÷1.7= 24÷15= 0.96÷0.8= 8.8-6.7= 4.7+2.3= 8.65×10= 0.8×7= 9.5-7.3= 4.5×2= 0.35×0.6= 1.5×7= 1-0.95= 6.9－2.5= 3.08×0.01= 1.32×8= 3.4-2.8= 7.2×0.8= 4.95×1000= 0.7×8= 0.96-0.35= 6×3.4= 6.9×0.1= 3.4-1.4= 0.35×0.6= 0.62－0.32= 0.4×0.5= 7.82-7.2= 3.08×0.01= 1.4×0.5= 2.4÷0.8= 2.19+9.1= 4.95×1000= 0.75×100= 10.8÷9= 10.1-0.89= 6.9×0.1= 0.02×0.5= 9.6÷0.8= 0.68+0.42= 0.4×0.5= 3.6÷0.3= 0.108÷2= 8.1-5.1= 2.4÷0.8= 6.3÷7= 4.95÷0.9= 0.728-0.24= 10.8÷9= 5.6÷100= 9.65÷0.1= 0.8+0.18= 9.6÷0.8= 0.75÷0.25= 0.325×100= 0.89-0.25= 0.108÷2= 0.125×8= 2.5×8= 1-0.98= 4.95÷0.9= 4.8÷0.3= 0.56÷0.7= 0.048+0.52= 9.65÷0.1= 0.96÷2= 0.125×4= 5×400= 0.325×100= 0.56÷28= 3.28×0.1= 19.9+11.1= 2.5×8= 0.36÷0.4= 3.9÷0.13= 187÷1000= 0.56÷0.7= 0.64÷0.8= 7.2×0.1= 1+3.89=10.3×2= 3.2-0.32= 9.8-4.8= 5+0.07= 5×0.6= 2+2.8= 480÷40= 1-0.61= 0.9×0.3= 380-290= 0.53÷100= 0.47+0.23= 3.5×0.2= 0.35+0.5= 5.1+2.3= 0.25+0.75= 2.01×0= 0.35+0.63= 125×80= 3.7+0.33= 10×0.05= 3500÷70= 0.078÷10= 0.51+0.33= 0.13×7= 3.1+3= 0.52+0.4= 1-0.6= 0.21×100= 3.8+0.38= 70×12= 8-4.6= 0.7×4= 7500÷250= 0.25×100= 5.8-3.6= 0.05×4= 3.8+1= 3.4-2.8= 0.52+0.4= 4×0.3= 0.95-0.05= 0.6-0.37= 6.45+5.5= 430-250= 450+780= 0.052×10= 4.5-1.3= 0.17+0.06= 3.1+0.3= 10+0.08= 3.4-2.8= 1.02-0.09= 3+0.3= 1-0.75= 9.53-1.53= 7200÷800= 630÷9= 0.5×1000= 8.8-6.7= 0.17+0.6= 4.5-0.4= 0.82+0.3= 10+0.08= 0.83-0.6= 9.5-5= 13.5+6.5= 9.5-7.3= 17×300= 330×9= 3.05×100= 7.2+0.8= 0.98-0.09= 9.53-1.53= 1.2-0.8= 7.82+0.3= 0.2+0.78= 9.5-0.5= 21.6-12.6= 8.8-6.7= 600×700= 3.5+2.4= 63÷100= 9.5-7.3= 10.2+0.02= 1-0.95= 0.83-0.5= 1-0.95= 0.15+0.7= 0.3+0.27= 0.76+0.14= 3.4-2.8= 670+250= 0.47+0.13= 80÷1000= 0.96-0.35= 10.2+0.2= 4.5+4= 2.7+0.4= 0.35×0.6= 9.2-6= 4-0.6= 0.72-0.43= 3.08×0.01= 8500÷500= 0.95+0.05= 30×100= 4.95×1000= 3.2-3.2= 2.5+3.2= 0.92-0.2= 6.9×0.1= 3.7+2.3= 0.74+0.16= 3.5+4.8= 0.4×0.5= 25×100= 23×100= 3.5+2.4= 2.4÷0.8=10.8÷9= 5.6÷100= 9.65÷0.1= 14.17÷100= 9.6÷0.8= 0.75÷0.25= 0.325×100= 9.2÷10= 0.108÷2= 0.125×8= 2.5×8= 7.13÷10= 4.95÷0.9= 4.8÷0.3= 0.56÷0.7= 1÷100= 9.65÷0.1= 0.96÷2= 0.125×4= 0.43÷10= 0.325×100= 0.56÷28= 3.28×0.1= 278.6÷1000= 2.5×8= 0.36÷0.4= 3.9÷0.13= 53.4÷100= 0.56÷0.7= 0.64÷0.8= 7.2×0.1= 38.2÷100= 0.125×4= 0.72÷3.6= 0.01×0.1= 2.33÷10= 3.28×0.1= 3.6÷24= 0.25×0.4= 4.56÷100= 3.9÷0.13= 0.8×1.1= 1.6÷0.8= 9.02÷10= 7.2×0.1= 7.2+12.8= 1÷2.5= 70.77÷100= 0.01×0.1= 46.7－3.8= 1.25×0.8= 356.8÷1000= 0.25×0.4= 12.8÷4= 3.2÷0.04= 3.2×3= 1.6÷0.8= 5.2÷13= 0÷1.7= 1.4×0.5= 1÷2.5= 12.5÷5= 0.22×102= 0.08×6= 1.25×0.8= 1.64÷41= 7.8×10= 1.5×0.3= 3.2÷0.04= 10÷20= 0.6×100= 0.71×2= 0÷1.7= 24÷15= 3.71×10= 0.25×4= 4.7+2.3= 8.65×10= 4.5×1000= 1.25×8= 4.5×2= 0.35×0.6= 0.92×100= 4.3×2= 6.9－2.5= 3.08×0.01= 6÷12＝ 1.2×0.4= 7.2×0.8= 4.95×1000= 0.87－0.49＝ 0.6×0.9= 6×3.4= 6.9×0.1= 5.2×10= 3.4×0.3= 0.62－0.32= 0.4×0.5= 0.28×1000= 5×0.6= 1.4×0.5= 2.4÷0.8= 6.12×10= 4.5×2= 0.75×100= 10.8÷9= 0.479×100= 0.03×0.5= 0.02×0.5= 9.6÷0.8= 17.6×1000= 1.6×0.3= 3.6÷0.3= 0.108÷2= 5÷100= 0.23×3= 6.3÷7= 4.95÷0.9= 21.3÷10= 5.1×2=7.2÷3= 1.92÷0.04＝ 8.4÷4= 0.32×500＝ 0.65÷5= 0.65＋4.35＝ 0.93÷3= 10－5.4＝ 2.7÷9= 4÷20＝ 3.8÷2= 3.5×200＝ 5.4÷0.8= 1.5－0.06＝ 4.6÷2= 0.75÷15＝ 1.8÷0.3= 0.4×0.8＝ 4.2÷7= 4×0.25＝ 9.6÷0.6= 0.36＋1.54＝ 6.4÷3.2= 1.01×99＝ 11÷0.11= 420÷35＝ 10÷2.5= 25×12＝ 14÷0.2= 135÷0.5＝ 0.31÷3= 3/4 + 1/4 = 10.5÷5= 2 + 4/9 = 14.7÷0.7= 3 - 2/3 = 20÷0.5= 3/4 - 1/2= 9.6÷1.2= 7/8 + 3/8 = 3.44÷2= 3/10 +1/5 = 65÷0.3= 4/5 - 7/10 = 9.9÷11= 2 - 1/6 -1/3 = 2.8÷2= 0.51÷17＝ 0.96÷3= 32.8＋19＝ 17×40＝ 5.2÷1.3＝ 100－63＝ 1.6×0.4＝ 3.2＋1.68＝ 4.9×0.7＝ 2.8×0.4＝ 1÷5＝ 14－7.4＝ 9×0.3=