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22 December 2009
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>> All subjects for ages 4 - 11 years
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Addition and Subtraction notes
Prog 1: Adding two numbers
Prog 2: Patterns of addition
Prog 3: Adding three numbers
Prog 4: Two-step addition
Prog 5: Addition with partition
Prog 6: Subtracting one number from another
Prog 7: Patterns of subtraction
Prog 8: Difference
Prog 9: Two-step subtraction
Prog 10: Plus and Minus
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