How to use the rekenrek August13 | Page 8
9+8 This calculation can be seen as 5 +4 + 5 + 3 = 10 +7 Or 8 + 8 + 1 Or 9 × 2 -1 • www.mrsmaths.co.uk
How to use the rekenrek August13 | Page 7
How to use the rekenrek August13 | Page 9