Year 3
Using round and adjust strategies to subtract and add near doubles
Year 3
Using round and adjust strategies to subtract and add near doubles
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Lesson details
Key learning points
- In this lesson, we will use round and adjust strategies to subtract and add near doubles. We will partition two digit numbers in order to make calculations easier.
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.
Using round and adjust and mental strategies, 34 + 35 =
68
70
71
Q2.
Using round and adjust and mental strategies, 42+ 46 =
86
87
Q3.
Using round and adjust and mental strategies, 29 + 28 =
58
59
Q4.
Using round and adjust and mental strategies, 35 + 39=
70
72
73
Q5.
Using round and adjust and mental strategies, 49 + 47 =
97
98