Math Games

Grade 4 - Number

Standard 4.N.3 - Choose numbers that result in a particular difference.

Included Skills:

Demonstrate an understanding of addition of numbers with answers to 10 000 and their corresponding subtractions (limited to 3 and 4-digit numerals) by:
• using personal strategies for adding and subtracting
• estimating sums and differences
• solving problems involving addition and subtraction.

• Achievement Indicators
• Students who have achieved this outcome(s) should be able to:
- Explain how to keep track of digits that have the same place value when adding numbers, limited to 3- and 4-digit numerals.
- Explain how to keep track of digits that have the same place value when subtracting numbers, limited to 3- and 4-digit numerals.
- Represent concretely, pictorially, symbolically the addition and subtraction of whole numbers up 4-digit by 4-digit.
- Describe a situation in which an estimate rather than an exact answer is sufficient.
- Estimate sums and differences using different strategies, i.e., front-end estimation and compensation.
- Solve problems that involve addition and subtraction of whole numbers (one or more steps/where some numbers may be irrelevant). Explain solutions to problems.
- Create a problem given a number sentence for addition or subtraction.
- Solve problems that involve addition and subtraction in more than one way, limited to 3- and 4- digit numerals. For example, 385 +  = 500 or 500 – 385 = .