Which multiplication problems do your students struggle with the most? Flurrish Education set out to answer that question by analyzing student responses through their app. Below is a chart showing which problems students struggled with. Click the image below to read more about how the data was collected and to view a larger version of the chart.
My own children struggled with 6x8, it is interesting to see that they were far from alone in that struggle!
h/t r/dataisbeautiful
h/t r/dataisbeautiful