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melisa1 [442]
3 years ago
14

Which number line models the sum of 1+(−2) correctly?

Mathematics
1 answer:
Tomtit [17]3 years ago
7 0

Answer:

option 3

Step-by-step explanation:

you add one, so the arrow goes one space to 1

since youre sutracting -2, the arrow goes ack two spaces to -1

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