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学生说明
There are 11 subtraction facts of 10. How many do you know? Show them on each page.
1) Take a 
of your ten frame subtraction fact
2) Go to the next page 
to show the next fact
3) 
to finish
教师备注（学生不可见）
Western Australia Mathematics Curriculum Outcome: Represent and solve simple addition and subtraction problems using a range of strategies including counting on, partitioning and rearranging parts (ACMNA015)
