Applying number bonds within ten to add and subtract
Applying number bonds within ten to add and subtract
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Lesson details
Key learning points
- In this lesson, we will be adding and subtracting 2 digit numbers without regrouping by using our number bond knowledge and using visual representations of place value.
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4 Questions
Q1.
There will be more number bonds for 7 than 8
Yes
Q2.
There will be fewer number bonds for 5 than 7
No
Q3.
Each number can be split into 1 whole and 2 parts
No
Q4.
4 + 5 and 5 +4 count as the same number bond
no
4 Questions
Q1.
If I know that 3 plus 4 is equal to 7, then I know 3 tens plus 4 tens is equal to 70.
False
Q2.
'Counting in ones' is the most efficient way of counting
True
Q3.
If I know that 6 = 4 + 2 and 5 = 3 + 2, then I can use these facts and say that 65 - 42 = 23.
False
Q4.
'Counting all' is the most efficient way of counting
True