Mathematics, 13.10.2020 15:01, DESIREEHANCOTTE10
Jillian is using integer tiles to add 7 + (negative 2). She uses the steps below.
Step 1 7 positive tiles.
Step 2 7 positive tiles and 2 negative tiles.
Step 3
7 positive tiles and 2 negative tiles. 2 positive and 2 negative tiles are circled.
Step 4
7 + (negative 2) = 2
Jillian has made an error. In which step does it occur?
Answers: 3
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Jillian is using integer tiles to add 7 + (negative 2). She uses the steps below.
Step 1 7 positive...
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