Math Games

Grade 4 - The Number System

Standard 4.NS.1.3 - Choose numbers that result in a particular difference.

Included Skills:

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.