|Nelson EducationSchoolMathematics 5|
Lesson 5 - Communicate About a Choice of Calculation Method
Adding and Subtracting Mentally - Use mental math strategies to add and subtract.
Interactive Math Flashcards - Add and subtract using mental math strategies and paper and a pencil.
Estimation Contraption - Use an estimation strategy to add the numbers before the time runs out.
Estimating Sums by Rounding - Use an estimation strategy to find the sum of two numbers.
Estimating Differences by Rounding - Use an estimation strategy to find the difference between two numbers.
Adding Whole Numbers - Add the two numbers using paper and a pencil.