decimal practice makes perfect (1)

a ppt is here

• addition and subtraction
• multiplication
• division

decimal scales

variations on a theme:

• locating points on a line
• finding end points
• generalising

what is a general rule for the end numbers?

why?

decimal multiplication and division practice

easy to check

decimal multiplication and division

what numbers go in the spaces to complete these multiplication tables?

(intended to be done without a calculator)

to extend/develop this task:
find the sum of the four numbers in the main part (not the outside) of the multiplication grid for each of the questions

and try to explain the result
or give further examples