Year 2 maths · E.2 · Add and Subtract to 100
Add a multiple of ten to a two-digit number
Add the tens. The ones stay the same.
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Mo wonders: 20 + 10 =
Answer: 30
Kai says: 27 + 40 =
Answer: 67
Mo says: 19 + 30 =
Answer: 49
Tip: Add the tens. The ones stay the same.
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