Question: F) Base-10 & Place Value Concepts in Standard US Addition & Subtraction Algorithms Below is the work of Martine, a 4th grader, who solved these

F) Base-10 & Place Value Concepts in Standard US Addition & Subtraction Algorithms

Below is the work of Martine, a 4th grader, who solved these addition and subtraction problems in May.

Problem A

Problem B

F) Base-10 & Place Value Concepts in Standard US
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