Lesson # 2 adding integers.

For (+7) + (+3) = (+10) the first number represents:

• Location: Seven units to the right of zero since is positive

• Distance Seven jumps to the left of zero since is negative

• Niether since it is not positive or negative

For (+7) + (+3) = (+10) the second number represents:

• Distance Three units jumps to the right from + since is positive

• Location: a dot three units to the left from 0 since is negative

• Distance: Three jumps to the left from 0.

To add (+7) + (+3) = (+10) in the number line the first step is

• I draw a dot on positive 7 on the number line

• I draw a dot on positive 3 on the number line

• I draw a jumps on positive 7 on the number line

To add (+7) + (+3) = (+10) in the number line to represent the second integer in this case +3 we use:

• A point form 0

• Arrow (jumps) to count the distance from the first integer

• Locate the answer in this case +10 on the number line.

• We use 0

To addd (+7) + (+3) = (+10) in the number line the second step is

• Count the second integer in this case +3 from 0 on the number line.

• Count the second integer in this case +3 from + 7 on the number line to end on +10.

• Locate the answer in this case +10 from +3 on the number line.

To add (+7) + (+3) = (+10) in the number line to represent the first integer in this case +7 we use:

• A point

• Arrow (jumps) to count the distance from the first integer

• Locate the answer in this case +10 on the number line.

• We use 0

The result of an addition comes from the combination of:

• The location of an integer and the distance of the second integers

• The combination of two locations

• The combinations of two jumps

• One integer in on 0 and the other in - 4

To represent using integers the word below from a word problem, we need to use:

• Positive ntegers

• Negative integers

• 0

To represent using integers the word above from a word problem, we need to use:

• 0

• Positive integers

• Negative integers

Does the point and jump method work with integers from a word problem?

• No

• Yes

• Only when they are integers from -10 to 10