• Lightbulb The student must be able to create a real-world problem situation from a number sentence that involves addition with a sum less than 20 or subtraction of a related fact. They must be able to model and explain their solutions. 


  • Write a word problem on your paper for each of the following number sentences. Model each problem with a math drawing and explain your solution, thinking, and how you solved each number sentence.

    a) 9 + 7 = ___

    b) 14 – 9 = ___


  • 1.3 Number and operations. The student applies mathematical process standards to develop and use strategies for whole number addition and subtraction computations in order to solve problems. The student is expected to:

    (F) generate and solve problem situations when given a number sentence involving addition or subtraction of numbers within 20


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