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Grade 3 - Number
Standard 3.N.9 - Practice solving addition sentences with two and three digit numbers ending in zero up to 1000.
Demonstrate an understanding of addition and subtraction of numbers with answers to 1000 (limited to 1, 2 and 3-digit numerals) by: • using personal strategies for adding and subtracting with and without the support of manipulatives concretely, pictorially and symbolically. • creating and solving problems in contexts that involve addition and subtraction of numbers concretely, pictorially and symbolically.