Math Chimp - Math resources aligned to the Common Core standards

2nd Grade Games - Relate addition and subtraction to length.


Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.


Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent whole-number sums and differences within 100 on a number line diagram.


Screenshot Name / Description Flag? Rating
Thinking Blocks Addition / Subtract
Use blocks to model addition and subtraction problems.

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