2 分数乘法
用你喜欢的方法算:
×22 4.6÷4+7.4×
95.6×1.8+95.6×8.2 3.9+4
+6.1+5
0.15÷0.25+(
+
) (
+
+
)×0.24
3.5×2.7﹣52.2÷18 18
﹣5.26﹣4.74
(2
+1
)÷(6﹣5
) (25+
)×4
+1
+
+2
.
列式计算.
(1)8比5多百分之几?
(2)24个2
再乘以1
是多少?
(3)24与它的倒数的积,减去
的
,差是多少?
(4)4
千克是3
千克的百分之几?
(5)比多少吨多
是3
吨?
直接写得数:
①0.37+4.3= ②4﹣0.36= ③10.1×99﹣9.9= ④
+
= ⑤7.8×9+7.8=
⑥25÷10%= ⑦400÷25÷8= ⑧
﹣
= ⑨
×
= ⑩(
+
)×6=
直接写出结果.
(1)2570+653= (2)3002﹣1999=
(3)0.25×16= (4)1.4+
=
(5)18
÷6= (6)
=
(7)1÷(1﹣
)= (8)(0.5+
)×16=
(9)3
)=
直接写出得数.
126+299=
0.09+1.9=
+
=
0.6﹣0.06=
9+99+999+3=
1000﹣99=
8﹣
﹣3.5=
764×0.01=
33×
=
0.01÷0.2=
脱式计算,写出主要计算过程,能用简便算法的要用简便算法.
①12×
÷
②
+
×9 ③14÷(
+
)×
④3.6﹣2.8+16.4﹣7.2 ⑤77×
+23×0.8.





=
﹣
= 3
﹣2.8= 1.37+8.63=
÷75%= 0.18×
= :
=
×
=
.原来这个分数是多少?
4+
×
+0.24×6.4÷0.32
×
﹣
.
=
)=
=
﹣
= 1.5÷0.1=
÷3+
×
= 3÷
﹣
+0.75=
=
=
= 456﹣199= 0.25÷
=
+0.25=
=
=
=
×0×
.
×18= ;
÷
= 1÷0.25=
×
÷
=
×
=
+
= 31×198≈ 4.8×11﹣4.8=
种西红柿.

×
= 5
﹣
=
÷80%= 0.125×32=
+
)×40=
÷8= 4﹣1
﹣0.4=
+
)×36= 4
﹣1
﹣1.25=
,求这块地的面积.
和9吨的
一样重. .
+
= 0.3﹣0.03=
= 0.01÷0.2=
×
=
﹣
= 7.2÷9=
2998×9
×
+
÷
.
+
=
×10%= 3.6÷12= 80%×80%=
×4÷
+
﹣
=
×
= 0×
=
×
=
+
=
=
×
= 1×
=
=0.25× = ÷1=
+ =1.
×
.
和一块地的
×
.
×
= 82×10%=
×56×
=
÷80%=
÷
= 6.3÷10%= 1÷3×
=
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