Exploring Addition and Subtraction
In this unit, your child will be developing strategies for adding and subtracting two-digit numbers.
The Learning Goals for this unit are to
- Add three addends ( for example, 5+6+7=18).
- Use 10 to help when adding and subtracting.
- Add multiples of 10 to one and two-digit numbers.
- Develop and use different strategies to add and subtract pairs of two-digit numbers.
- Look for patterns in digits when adding or subtracting.
Addition and Subtraction to 100
In this unit your child will be learning about addition and subtraction of two-digit numbers, and developing an algorithm for finding and recording solutions.
The Learning Goals for this unit are to
- Model addition and subtraction of two-digit numbers on a place value mat.
- Use the standard algorithm as one way to add and subtract two-digit numbers.
- Pose and solve number problems requiring addition or subtraction.
- Use a calculator to solve addition or subtraction problems with numbers over 50.