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kherson [118]
2 years ago
7

For addition, drag tiles onto the board.

Mathematics
1 answer:
Ainat [17]2 years ago
3 0

Answer:

-9

Step-by-step explanation:

The sum of -2 and -7 is given as follows;

-2 + (-7)

In mathematical operations, +  *  - is -.

So we have;

-2 - 7

This gives us: -9

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