Year 2

# Addition and subtraction of 2-digit numbers

## Lessons (10)

• In this lesson, we will use our knowledge of number bonds within ten to begin deriving number bonds within 20.
1 Slide deck
1 Worksheet
1 Quiz
1 Video
• In this lesson, we will use our knowledge of number bonds within ten to begin deriving number bonds within 20.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• In this lesson, we will use our knowledge of number bonds within ten to begin deriving facts when adding or subtracting ones from numbers within 100.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• In this lesson, we will use our knowledge of number bonds within ten to begin deriving facts when adding and subtracting multiples of ten within 100.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• In this lesson, we will add and subtract multiples of ten by using number bonds to ten.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• In this lesson, we will identify which known number bonds will help us to add two 2-digit numbers and use known facts to derive new addition facts.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• In this lesson, we will be identify which known number bonds will help us subtract a 2-digit number from a 2-digit number.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• In this lesson, we will apply our knowledge of number bonds within ten to derive 2-digit addition and subtraction number facts within 100.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• In this lesson, we will be apply our knowledge of strategies such as number bonds to 10 and 20, doubles and near doubles to add three 1-digit numbers.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video
• In this lesson, we will revisit adding and subtracting two 2-digit numbers and exploring mental strategies to help us solve problems.
1 Slide deck
1 Worksheet
2 Quizzes
1 Video