# Place Value: Addition

The program may lead students to understand the algorithm for addition by comparing the steps to the answer obtained by regrouping.

Read More →The program may lead students to understand the algorithm for addition by comparing the steps to the answer obtained by regrouping.

Read More →The program may lead students to understand the algorithm for subtraction by comparing the steps to the answer obtained by regrouping. Borrowing should be insightful.

Read More →A visualization of the meaning of the digits in numbers 1 – 999.

Read More →A visualization of the meaning of the digits in numbers 1 – 99.

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