New
New
Year 3

# Informal and mental strategies for adding and subtracting two 3-digit numbers

## Lessons (10)

• I can add two 3-digit numbers using partitioning.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• I can add 2 and 3-digit numbers by redistributing.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• I can choose the most efficient strategy to add two 3-digit numbers.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• I can subtract 2 or 3-digit numbers using partitioning and bridging a multiple of 10
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• I can subtract a pair of 2-digit numbers by finding the difference.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• I can subtract 3-digit multiples of 10 by finding the difference between them.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• I can choose the most efficient strategy to subtract from a 3-digit number.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• I can use addition and subtraction to solve problems involving bar charts, pictograms and tables.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• I can use addition and subtraction strategies to solve problems in different contexts.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video