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Grade 4 - The Number System
Standard 4.NS.1.3 - Solve addition equations and word problems with numbers up to 1000.
Students will be expected to demonstrate an understanding of addition and subtraction of numbers with answers to 10 000 (limited to three- and four-digit numerals) by • using personal strategies for adding and subtracting • estimating sums and differences • solving problems involving addition and subtraction
• Performance Indicators - N03.01 Represent concretely, pictorially, and symbolically the addition and subtraction of whole numbers, limited to three and four-digit numerals. - N03.02 Determine the sum of two given numbers, limited to three and four-digit numerals, using a personal strategy, and record the process symbolically. - N03.03 Determine the difference of two given numbers, limited to three- and four-digit numerals, using a personal strategy, and record the process symbolically. - N03.04 Describe a situation in which an estimate rather than an exact answer is sufficient. - N03.05 Estimate sums and differences using different strategies. - N03.06 Create and solve problems that involve addition and subtraction of two or more numbers, limited to three- and four-digit numerals. - N03.07 Explain mental mathematics strategies that could be used to determine a sum or difference. - N03.08 Determine a sum or difference of one, two, and three-digit numerals efficiently, using mental mathematics strategies.