3 分数除法
直接写出得数:
3.9+61= 15÷1%= 9.1﹣1.9= 7.2÷0.6=
1+30%= 0.125×8= 0.32= 7π=
+
=
÷
=
﹣
﹣
=
+
×14=
连线题.
六年级一班有男同学25名,女同学20名.
①男同学人数是女同学的几倍?①20÷25
②女同学的人数是男同学的百分之几?②(25﹣20)÷20
③男同学比女同学多百分之几?③25÷20
④女同学比男同学少百分之几?④(25﹣20)÷25.
X:
=
:
=
:30%
÷
×X=
×
=
÷
= 125×1.6= 12.56÷6.28= 7×
÷7×
=
﹣
= 3.14×5= 3.14×40= 75×10%=
÷3﹣
=
农业技术员从一块小麦地里取回20株小麦苗,测得各株株高如下:单位:厘米)
74 83 85 79 82 88 86 91 87 80
81 79 86 89 72 85 90 84 76 82
株高(厘米) 70﹣74 75﹣79 80﹣84 85﹣89 90﹣94
株 数
① 段的株数最多,是 株.
②如果75﹣89厘米株高是发育正常,这些小麦苗中有 株是发育正常的.
③这块小麦地发育正常的小麦苗占总苗数的几分之几?
口算:
35+416= ; 710﹣182 ; 51.7﹣34.8 ;
+
= 1
;
125×8= ; 468÷12= ; 1.25×2.4= .
÷
=
直接写数对又快!
89+33=
×21= 1.87+5.3= 33÷
=
+
=
4.9×8.1≈ 23.9÷8≈ 2.5×0.4= 1﹣0.92= 707﹣699=
直接写出得数:
26×50= ; 25×0.2= ; 10﹣0.86= ; 4.8÷0.8= ;
1﹣1÷9= ; 125%×8= ;
÷3= ; 24×
= ;
12×(
+
)= ;
= ; 2.5×3.5×0.4= .
直接写得数:
275÷4÷25= ; 4.8×25%= ;
÷
÷
= ;
×5÷
×5= ;
﹣
+
= ; 2.74﹣1.4= ;
9.9×99+9.9= ; 8×
×12.5= .
直接写出得数:
÷
=
÷3=
×
×
=
×9×
=
÷2= 5÷
﹣
÷5= 2.7﹣
= 6×
=
(1.6+3.2)×0.125= 1÷
=
÷10= 6×
=
1﹣75%=
÷
=
×
= 5÷1%=
4÷
=





= 1÷50%= 100×0.1%= 98﹣0.23﹣0.77=
+
﹣
=
+
=
÷
= 10÷
= 3.14×3=
+
= 1÷10%= 0.5×20%= 16÷
= 12×30%=
×3.5=
×
= 9.5+5%= 2﹣
= 10×25%=

+
= 0.5×0.6÷0.5×0.6= 82= 0.9+0.01=
÷0.75= 1+6÷7= 2÷
=
+
=
=(4)0.5×
=
×30%=
×
=(8)0÷
=
﹣
=
+
=
×
=
÷7=
﹣
= 12×
=
÷26=
+
=
×
=
+
= 1÷
=
×
=
﹣
= 570÷
×20=
﹣
=
×
= 1÷
= 10﹣
=
÷
= 19.9+19.9×99=
﹣(
﹣
)= 0÷
= (
)×6=
+
=
×
= 8÷
×
= 1÷
=
÷8= 7×
=
×12=
×
=
﹣
=
+
÷
= 14÷
=
+
=
﹣
=
×
=
÷
=
×8= 1.2×
= 20÷
= (
﹣
)×30=
﹣
÷99×
×
= 1﹣
=
÷
= (7+
)×8=
×6= a﹣
a= 12×(
﹣
+
)=
+
=
= 12×(
)=
=
= 6.4×101﹣6
= 12
×
×
×…×
=
×
= 6.4×
﹣
= 1÷
×
= 0.6÷
=
÷0.875﹣1=
= 9÷
=
﹣
=
+
=
×75%= 1÷
×
)÷2= 1﹣(
+
)=
21÷
÷
24÷
.
×
= 15÷1%= 0.52= 3.14×6=
÷
= 0.375×
=
×3÷
×3= 0÷
= 0.5+
=
×
=
=
÷
= 2﹣
﹣
= 16.5+4.7=
÷3÷
=
×
=
÷2= 12×
= 3÷
=
﹣
×
=
÷
=
×14= 1﹣
×
= 6×
=
÷
=
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