Laura Bean
学生说明
1. Count the value of the coins. 2. Use the to write the value. 3. Use the to check your answer. 4. Use the tool and move the coins up to a certain value. 5. Click to submit!
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to write the value.
3. Use the 
to check your answer.
4. Use the 
tool and move the coins up to a certain value.
5. Click 
to submit!
