+ = | - = | 0÷6 = | 39× = | 15- = |
1÷ = | 21÷ = | ( + )×6= | × ÷ × = | 8× - = |
+ = , | - = , | 0÷6 =0, | 39× =9, | 15- =14 , |
1÷ = , | 21÷ =24, | ( + )×6=5, | × ÷ × = , | 8× - =6 . |
分析:根据分数加减乘除的计算方法进行计算即可;(
+
)×6根据乘法分配律进行简算;
×
÷
×
按照从左向右的顺序进行计算.点评:口算时,注意运算符号和数据,然后再进一步计算即可,能简算的要简算.
编辑:chaxungu时间:2026-04-27 08:11:31分类:小学数学题库
+ = | - = | 0÷6 = | 39× = | 15- = |
1÷ = | 21÷ = | ( + )×6= | × ÷ × = | 8× - = |
+ = , | - = , | 0÷6 =0, | 39× =9, | 15- =14 , |
1÷ = , | 21÷ =24, | ( + )×6=5, | × ÷ × = , | 8× - =6 . |
+
)×6根据乘法分配律进行简算;
×
÷
×
按照从左向右的顺序进行计算.