Year 2
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Lesson details
Key learning points
- 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.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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5 Questions
Q1.
If 2 + 3 = 5 then 20 + 30 = _____
30
40
60
Q2.
If I know that 6 - 2 - 3 = 1 then 60 - 20 - 30 = ____
1
100
60
Q3.
What is 40 - 30?
0
1
20
Q4.
What is 67 - 20?
37
40
57
Q5.
Seventy Two subtract Thirty is equal to ______
Forty
Thirty
Thirty Two
5 Questions
Q1.
If 3 + 6 = 9 then 39 + 60 = ______
9
90
96
Q2.
Which TWO number facts help us to solve 24 + 35?
2 + 5 = 7
3 + 4 = 7
Q3.
Which TWO number facts help us to solve 17 + 52?
5 - 1 = 4
7 - 2 = 5
Q4.
Which TWO number facts help us to solve 23 + 54?
4 - 3 = 1
5 + 3 = 8
Q5.
What is 63 + 12?
57
70
74