3 分数除法
直接写得数
(1)0.36+0.4=
(2)12.5×32×2.5=
(3)1÷0.9=
(4)8×(12+0.5)=
(5)9﹣
+
=
(6)
÷
=
(7)
﹣
=
(8)1÷
=
(9)5
+0.8=
(10)6+6﹣
=
直接写出得数.
﹣0.01= 1.53+47=
+
=
÷9=
×
=
+0.75=
÷
= 1﹣25%=
0.6÷
= 125×8=
×1.8= 0.8÷1.6=
(
﹣
)×12= 402﹣62﹣38= 752﹣598= 99+999+2=
口算.
(1)7.2+2.08=
(2)
+
=
(3)
÷
=
(4)0÷0.99=
(5)32×0.125=
(6)0.75×3÷
=
(7)
+3.2÷16×4=
(8)
﹣
×
=
(9)0.8÷0.01=
(10)10×
﹣1÷3=
(11)8.4÷0.7=
(12)
×5÷
×5
(13)0.23=
直接写出得数.
40×1.5=
= 3.1+4.67= 0.0096×1000=
=
72÷1.2+72÷1.8= 7×5÷7×5=
=
= 2004×19﹣2004×18﹣2004=
直接写出得数:
11÷1
= (348+199)×0.01= 1.875+
+
= 1.2﹣
×3=
1+1÷3= 0.42÷
= (117.5﹣17)÷0.2= 7.8×(8
﹣8.8)=
直接写出得数.
236+298=
=
= 0.15+20.2=
10÷
= 6.3÷0.07= 0.25÷2.5%= 6﹣0.75=
51×
= 3.7×0.001=
=
=
直接写得数.
728﹣299= 3.6×25%= 0.25×4÷0.25×4= 0.23= 6÷
=
﹣
= 3﹣
= 1﹣
+
= 8﹣1.3﹣1.7= 0.13+
+0.87=
口算
(1)12÷
= (2)1÷1%= (3)9.5+0.5= (4)
+
= (5)0÷
×2=
(6)1﹣
= (7)
×
= (8)
÷
= (9)
﹣
= (10)
×
×9=
+
= 44÷
=
÷80%=
×
= 1÷0.5×2= (
﹣
)÷
=
=
= 0.6÷6=
= 6
=
÷
= 3.4÷0.17=
×
×
=
+
=
×
=
= 7.2×
= 8
=
÷8=
﹣
= ⑤
÷
﹣
= ⑥
×0.2=
=
÷1= 5.47﹣1.8﹣3.2= (
+
)×63=
+0.5=
÷
=
×1.2= 568﹣198= 10÷1%=
÷
=
+
= 12﹣
=
=
=
= 40×0.25= 0.5+1
=
= 480÷6= 0÷
= 6.3×
=
+
= 10﹣
=
÷
﹣
×
÷6=
×
÷2=
×
××6×18=
×8+8×
=
)÷7=
=
×25=
+
)=
×
÷
=
=
=
=
÷1﹣
=
÷
=
×16= 0.32= 8﹣
=
×
=
÷
=
+
= 5﹣
=
×33 586﹣198=
﹣
= 1÷
=
×
÷
×
=
= (6)0.1×10÷0.1×10= .
= 7﹣0.35=
﹣25%=
=
=
比30的25%多1.5,求这个数.
、乙数的
是40,甲数是乙数的百分之几?(精确到0.1%)
+
×0=
=
×33= 32×200=
﹣
=
)÷24
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