Operations With Integers Addition Models Using TwoColor Counters

Operations With Integers Addition Models Using Two-Color Counters Using a Number Line

Working with Two-Color Counters Color Representations Positive Negative

The value of the pairmat is 0. is+1. Current The value now ofbecomes the 0

+ 1 + (-1) = 0 read “positive 1 plus negative 1 equals 0”.

Operations with Integers

2+3 Read “positive 2 plus positive 3” Read “positive 5”

-4 + (-2) Read “negative 4 plus negative 2” Read “negative 6”

-6 + (-3) Read “negative 6 plus negative 3” Read “negative 9”

-3 + 5 Read “negative 3 plus positive 5” Read “positive 2”

0 + (-3) Read “zero plus negative 3” Read “negative 3”

-3 + 3 Read “negative 3 plus positive 3” Read “zero”

-6 + 7 Read “negative 6 plus positive 7” Read “positive 1”

6 + (-8) Read “positive 6 plus negative 8” Read “negative 2”

2 + (-2) Read “positive 2 plus negative 2” Read “zero”

-2 + (-8) Return to Main Menu Read “negative 2 plus negative 8” Read “negative 10”

The Number Line Origin Positive Negative 0

The Number Line Negative Positive -4 -3 -2 -1 0 1 2 3 4

The Number Line Negativ Positive e 4 + (-7) -4 -3 -2 -1 0 1 2 3 4

The Number Line Negative Positive -3 + 5 -4 -3 -2 -1 0 1 2 3 4

The Number Line Negative Positive 3+ (-5) -4 -3 -2 -1 0 1 2 3 4

The Number Line Negative Positive What problem is shown below? -4 -3 -2 -1 0 1 2 3 4 -3 + 7 = 4

The Number Line Negative Positive What problem is shown below? -4 -3 -2 -1 0 1 2 3 4 -2 + 2 = 0

The Number Line Negative Positive What problem is shown below? -4 -3 -2 -1 0 1 2 3 4 -1 + -2 = -3

Return to Main Menu The Number Line Negative Positive What problem is shown below? -4 -3 -2 -1 0 1 2 3 4 4 + -7 = -3