Lesson 8.5 Number pairs to 100
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Mathematics
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2nd Grade
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Hard
Ernie Dia
Used 9+ times
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13 Slides • 1 Question
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Lesson 8.5 Number pairs to 100
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We can also use a number pair to show this;
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Try this! Find the missing number.
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When we add numbers mentally , we are trying to find a quick way of adding the numbers in our heads.
What is 20+8+80?
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Multiple Select
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70 and 30 make 100
30 come from 40
since we took 30 so there are 10 left.
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Lesson 8.5 Number pairs to 100
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