Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies. Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies. Can you solve the ...

Before taking part in the quiz make sure you have a pencil or pen and a piece of paper ready for writing down your answers - better still, print off our answer sheet below. Use your mental maths ...

Join Ralph van Dijk and side-kick Matrix for more questions to consolidate mental maths skills. The focus today is adding and subtracting two-digit numbers.

Cath Pearn is affiliated with both the Australian Council for Educational Research and the Melbourne Graduate School of Education, The University of Melbourne. I’m sure most people can remember trying ...