The tables inside ten by ten, asked both ways. 7 × 6 and 42 ÷ 6 are one fact, and a
child who only ever meets the multiplication half has learned half of it. Mixing them on
one sheet is the point.
How to use it
No clock. The tables are the part of maths most often taught against a stopwatch and
the part that most often produces the anxiety that makes the stopwatch pointless.
Mark it and then write out just the ones that were wrong. There are usually four or
five, almost always in the six, seven and eight tables, and those five are the whole
job.
What to look for
Whether the division half is slower than the multiplication half. It usually is, and
it is the half that matters more later.