直接写出得数 + = | 1÷ = | × = | ÷9= |
( -0.5)÷ = | ÷ = | × = | ÷10= |
- = | ÷ × = |
解: + = , | 1÷ = , | × = , | ÷9= , |
( -0.5)÷ =0, | ÷ = , | × = , | ÷10= , |
- = , | ÷ × = , |
,
,
,
,0,
,
,
,
,
.分析:根据分数的加法、减法、乘法、除法和四则混合运算的计算方法解答.
点评:本题主要考查分数的加法、减法、乘法、除法和四则混合运算的计算方法,注意计算时要细心,能约分的要约分.
编辑:chaxungu时间:2026-04-27 08:18:40分类:小学数学题库
直接写出得数 + = | 1÷ = | × = | ÷9= |
( -0.5)÷ = | ÷ = | × = | ÷10= |
- = | ÷ × = |
解: + = , | 1÷ = , | × = , | ÷9= , |
( -0.5)÷ =0, | ÷ = , | × = , | ÷10= , |
- = , | ÷ × = , |
,
,
,
,0,
,
,
,
,
.