483,226 views
35 votes
35 votes
Jessica made the addition model below of the expression (-5]+(-2)+3

User Cfranklin
by
3.3k points

1 Answer

23 votes
23 votes

Let's see what are the steps Jessica made:

First step : - 5

This means that the arrow should be on the left, over - 5

Second step: + (-2)

Let's recall that:

Two like signs make a positive sign, two unlike signs make a negative sign.

Therefore + (

User Eni
by
2.5k points
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