Add 2 digits to a multiple of 10 (bar model)
Add a 2-digit number to a multiple of 10, with bar models to help.
Add 2 digits to a multiple of 10 (bar model)
Add a 2-digit number to a multiple of 10, with bar models to help.
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Add a 2-digit number to a multiple of 10, with bar models to help.
Add a 2-digit number to a multiple of 10, with bar models to help.