2 小数除法
直接写出得数.
3﹣113= 34×1.6= 0.8÷0.01= (0.25+14+12 )×8=
1÷119= 0.6÷35= 1÷25%×4= ×2÷×2=
直接写出得数.
0.3×1.5= 6.8÷17= 42÷60%= 38+0.625=
36÷0.6= 7﹣0.35= 1﹣25%= 14+15=
12÷7= 0.5÷14.
180÷60= 12×25= 0÷90=
4×5÷4×5= 0.25×4+4= 131+218+269+182=
25×6×4= 420÷35= 36×5×4=
120÷5÷3= 198﹣75﹣25= 120﹣20÷5=
59亿﹣58亿= (1.3+3.5)÷0.6= 75÷2.5=
0.45÷1.25÷8= 2.5×7.6×4= 97.6÷0.02=
8.8﹣(0.25+0.4)= 0.25+87+0.75= 0.8﹣0.35×2=
0.1÷0.01×0.1= 9.9+9.9×99= 2.7×3.6+6.4×2.7=
720÷8÷9= 2.9+5.7+2.1= 2﹣0.16﹣0.64=
16.7+84.5﹣16.7= 6.8﹣(3.8+2.9)= 9×1.3+9×6.7=
5.5﹣5.25+5.2= 0.8×25﹣10= 42.8×25×4=
7.2+2.8= 0.9÷0.01= 3.5+7.6=
3×0.2×0.5= 0.96÷0.3= 1.5×0.4=
7÷0.25= 2.5×0.7×0.8= 8﹣2.5=
16÷1.6= 5.6×1.01= 8×(2.5+0.25)=
0.36+0.64= 64.32÷16= 72.8÷0.8=
8.4×0.2+1.6×0.2= 8.4÷4.2= 0.05×0.8=
2.56﹣0.37= 1.23×3= 25×0.8×0.5=
12×2.5= 3.2÷1.6= 3.5+3.5×3=
19.6÷2= 8.8÷2.2= 3.9+2.03=
7.2×0.3+2.8×0.3= 13.8+9.9= 2.4×2.5=
0.75×4= (1.5+0.25)×4= 4.2÷0.1=
4.2÷3.5= 2.14﹣0.9= 27+456+73=
12÷0.3= 2.87÷0.7= 13÷4=
24÷4+56÷4= 2.1×0.3÷2.1= 2.3﹣0÷8.1=
1.37﹣1.37÷1.37= 4.4÷(5×0.2)= 7×1.3=
0.96÷0.06= 0.36×0.3= 0.35÷0.7=
13.65÷13= 4×0.8×0.25×1.25= 13+0.7÷0.7=
7.05×23.7+7.05×76.3= 0.125×3.2×2.5= (12+23.1÷0.75)×0.4﹣5.12=
728+199= 637﹣201= 16×25=
1.6×[(12﹣7.2)÷(0.84÷2.1)]=
口算:
36+48 920﹣460 570÷10 12.5÷0.5 4﹣2.4
0.125×8 3.6×25% × 3.5+4.7 0.23÷0.1
÷3 ÷ 298+405≈ 802﹣396≈ 38×51≈
432÷48≈
10﹣2.65= 0.9×0.08= 528﹣349= 6+14.4=
24÷0.04= 12.34﹣2.3= 0÷3.8= 7÷1.4=
7.2÷8×4= 67.5+0.25= 1.9×4×0.5= 0.77+0.33=
400÷125÷8= 5﹣1.4﹣1.6= 2﹣(+)= ÷3×=
187.7×11﹣187.7= 10×2= 3.2×7÷3.2×7= 6÷6=
80×0.125= (﹣)×12= 1﹣÷62.5%=
脱口而出.
1﹣0.08= 0.29×50= 0.99×0.78×0= 8.2﹣2.75﹣1.25=
2.5×0.4÷2.5×0.4= 0.3+0.07= 0.1÷0.08= 0.32÷0.5=
计算下面各题.
(1)用竖式计算,并验算.
20.01﹣9.94=
45.3÷75=
(2)用你喜欢的方法计算.
①960+1040÷(704﹣688)
②6.25÷0.01﹣1.25×25×8
③15.73﹣2.17﹣1.83+4.27
④×÷
⑤3.5×+5.5×80%+0.8
⑥+1÷.
直接写出得数.
510﹣240= 2.4×5= 5.5+6= 8﹣1.8= 7.2÷0.4=
﹣= 0.32= 30÷= ×3÷×3= 12×(﹣)=
直接写出得数.
312﹣105= 6.4÷0.8= ﹣= ×÷×= 0.8×1.25= 3÷=
2+= 2﹣+= 3÷1%= 3.25+7= 1÷= ﹣()=
直接写得数.
42×50= 0.6﹣0.47= 25×8= 1﹣0.06= 0.8+4.7= 0.75×100=
0.101×100= 12.1÷100= (59+21)×(72÷6)= 5.6÷100×10= 3.15×1000= 0.001×10=
小马虎在计算一个道被除数是两位小数,除数是3.6的除法算式时,把被除数和除数的小数点都看掉了,得到的商是8.25.你能帮助他算出正确的被除数和商各是多少吗?
算一算.
93÷100= 0.72+0.18= 1.38×100= 800÷20=
9.4﹣2.6= 73+227= 4×(25×7)= 6×5÷3=
2﹣0.94= 1.54﹣0.5= 80﹣0.8= 23×4+27×4=
写得数
6.3+7= 21.5+9.5= 2.5×0.4= 42.8﹣4.28=
1﹣0.01= 3.5÷0.5= 8.2÷0.01= 8.2×0.01=
口算
1.2÷0.2= 2.5×4= 0.25+4= 1.87×0=
3.5+0.5= 1.2÷0.4= 3.6÷4= 0÷1.25=
0.12×6= 0.64×0.03= 5.8+4.2﹣6.5= 7.8÷3=
0.125×8= 2.8÷1.4= 0.25÷0.5= 7.21÷7=
0.35÷10= 3.6÷3= 6.3÷0.9= 0.54÷6=
0.3×0.1= 1.3÷2= 0.4÷8=2 7.3÷3=
0.51÷0.3= 15÷0.01= 5÷10= 0.7×12=
0.2×0.5= 3.8×0.1= 0.2×0.2= 0.04×0.4=
12.4+7.6= 8×0.5= 0.72÷36= 9×2.5+2.5=
1.8÷3= 2.3÷2= 6.5÷5= 2.14÷2=
2.5×4= 2.7×2= 0.5×7= 4.8+3.6+5.2=
3.4÷1.7= 2.5+0.2= 4.5÷5= 5+2.8=
0.8×0.3= 13.5×2×0= 5.25÷5= 4×2.2=
0.12×0.5= 1.8×5= 6.24÷2= 2.83﹣1.43=
1.2+2.9= 3.8÷2= 1.32×3= 4.6×7=
直接写得数.
9.3+7= 13.52﹣4.5= 1.2×11= 5.2+16.3+4.8=
0.18÷0.09= 5.1﹣2.6+4.9= 0.12×9+0.12= 13.6÷0.03×0.3=
0.16÷4=