HamiltonTrustProblem-Solving Investigation: Decimal and money calculation. (Year 5 Addition and Subtraction) (0)
HamiltonTrustProblem-Solving Investigation: Subtract by counting up. ( Year 2 More Addition and Subtraction ) (0)
HamiltonTrustTeaching Presentation: Mental subtraction – counting up ( Year 3 Addition and Subtraction ) (0)
HamiltonTrustPractice Worksheets: Subtract by counting up. ( Year 2 More Addition and Subtraction ) (0)