Next week we have an excellent illustration of how knowing ‘tables’ and understanding place value can make other maths much simpler with a page of questions all about multiplying multiples of ten by a single digit.
If you know that 7 x 8 = 56 then 70 x 8 can be done ‘in your head’ very quickly.
Many children (and adults) count out loud and use their fingers when counting on in tens, holding out one finger each time ten more is added. Nothing wrong with this but care needs to be taken that ten is not counted when saying the first number out loud.
It is a sad state of affairs that schools are still having to teach children to convert imperial to metric units, even when we have been metric for over 40 years. nevertheless I have included some work on concerting imperial and metric units.