5pp. Using Ten Frames Gadgets to teach subtraction with strategies to 20. Links to worksheets to compliment the Gadget.
ACMNA015
Represent and solve simple addition and subtraction problems using a range of strategies including counting on, partitioning and rearranging parts
ACMNA029
Explore the connection between addition and subtraction
ACMNA030
Solve simple addition and subtraction problems using a range of efficient mental and written strategies
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