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ozzi
3 years ago
12

Sam wanted to find the difference 10 -(-6).

Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0

Given:

The expression is 10 - (-6).

Sam's calculation is 10 - (-6) = 10 + (-6) = 4

To find:

Whether Sam's thinking correct or not.

Solution:

We have,

10 - (-6) = 10+6       [\because (-)(-)=(+)]

10 - (-6) = 16

10 - (-6) \neq 4

Therefore, Sam's thinking was incorrect.

On number first we have to move 10 units from 0 in positive direction after that negative sign means move in left direction.

But we have 2 negative signs so we need to move 6 units more on positive or right direct as shown below.

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