来自陈锐的问题
能帮我出30到整数乘分数的口算题吗
能帮我出30到整数乘分数的口算题吗


能帮我出30到整数乘分数的口算题吗
能帮我出30到整数乘分数的口算题吗
1,10X2/5=2,14X3/7=3,28X5/7=4,35X6/7=5,48X6/8=6,54X6/9=7,27X3/9=8,45X8/59,42X7/2=10,36X8/3=11,32X7/4=12,55X6/5=13,54X7/6=14,49X4/7=15,72X5/8=16,63X7/9=17,84X6/2=1...