3 分数除法
直接填得数:
×
= ;
÷3= ;
﹣
= ; (
+
)×56= ;
1÷
×1÷
= ; 20×
= ;
÷
= ;
×
= ;
1÷(1÷9)= ; (
﹣
)÷3= .
0.6×0.7= 2.4×5= 0.5×7.6= 40×0.45= 0.8×0.4=
4.5×5= 3﹣0.54= 0.6×11= 2.4+4.8= 0.45×1000=
0.7÷100= 1×3.12= 12.7+4.3= 0.54﹣0.24= 1.25×80=
3.6+0.45= 2.5×2.4×0.4= 5﹣0.27﹣1.73= 2.8+3.45+1.2= 0.35+99×0.35=
口算:
3.14×2= 3.14×3= 3.14×4= 3.14×5= 3.14×6=
3.14×7= 3.14×8= 3.14×9= 3.14×2.7=
+
=
4+
= 2﹣
=
×
= 6÷
=
÷5=
×
=
﹣
= 3.14×2+3.14×0.7= + = .
直接写出得数
170×400= 0.32×500= 3.5×200= 1.5﹣0.06= 0.75÷15=
1.01×99=
+
= 0.51÷17= 32.8+19.01= 4.9×0.7=
0.87﹣0.49= 17.5﹣(2.5+3.8)=





倍是
?
是72的
,求这个数?(用方程解)


÷
×
.
=
﹣
= 28×20%=
= 1÷
= 36×
= 15÷
=
= (3)
= (4)15×0.4=
= (6)
= (7)
= (8)
=
=
÷
+5%=
×25%=
+15%=
×
=
÷
=
×
=
÷
=
= 4×
= 10÷
= 72÷36%=
=
= 0÷
=
+
)×7=
×
=
﹣
=
,它的边长是多少?
米,是高的
.面积是多少平方米?
,乙圆周长比甲圆周长多
.
,每段长 米,2米占这根木条的
.4段占5米的
.


1÷7
.
+
=
+120=
×
= 40﹣2
=
×
=
+
﹣
=
÷
=
= 2﹣
=
+
=
×
= 2÷
=
+
=
=
×
=
﹣
=
×
=
÷6= 1﹣10%=
÷
=
÷
= 1÷20%=
+
=
×
= 20×90%=
+
= 8÷
=
×
=
= 4×
= 
=
÷
= 
= 
=
÷3=
﹣
= 8÷
×8= 30×50%=
﹣
= 8×
=
÷
= 3.5
=
×
=
×6=
﹣
×
÷
÷
+
﹣
÷90%
﹣12.5% 48%×
.
×6= 0÷
= 1÷10%= 4﹣
﹣
=
×5+
×9=
÷
=
÷6= 45×80%=
=
×2÷
=
=
=
=
=
=
=
=
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