×4= | × = | ÷ = | × × = |
1÷ = | 1 ÷ = | ×0.75= | ×14+ = |
1 - = | + = | ÷5= | ÷ × ÷ = |
解:
×4=5, | × = , | ÷ = , | × × = , |
1÷ = , | 1 ÷ =2, | ×0.75= , | ×14+ =14, |
1 - = , | + = , | ÷5= , | ÷ × ÷ =16. |
故答案为:5,
,
,
,
,2,
,14,
,
,
,16.
分析:
×
×
可以直接约分计算;
×14+
可以运用乘法分配律简算;
÷
×
÷
把除法变成乘法之后再约分求解;其它题目根据运算法则直接计算.点评:本题考查了基本的分数计算,计算时要细心,把结果化成最简分数.
×4=
×
=
=
=
=
×0.75=
=
+
=