Grade 1 - Numbers, Operations and Relationships
Standard 1.NOR.1.6.1 - Write a subtraction sentence to represent the word problem with numbers up to 18.
Included Skills: Subtraction
Use the following techniques when solving problems and explain solutions to problems: • concrete apparatus e.g. counters • pictures to draw the story sum • building up and breaking down numbers • doubling and halving • number lines supported by concrete apparatus