The “Grade 3 Subtraction” activity packet is aligned with the Ontario Grade 3 Mathematics curriculum expectations. These expectations are as follows:
- Solve problems involving the addition and subtraction of two-digit numbers, using a variety of mental math strategies;
- Add and subtract three-digit numbers, using concrete materials, student- generated algorithms, and standard algorithms;
- Use estimation when solving problems involving addition and subtraction, to help judge the reasonableness of a solution;
This packet includes 28 worksheets and 13 lessons that can be used to address the above expectations. This packet also includes mental math half-sheets that can be used at the beginning of a lesson to review key concepts.
If you have any questions, please feel free to let me know.