Integers
The integer that represents the following statement: "15 yard loss"
-15
12 + 4
16
10 - 5
5
Which Number is bigger 8 or 6?
8
Whole numbers and their opposites.
integers
Why is this incorrect? (-2) - (2) = 0
The numbers were subtracted without taking the negative into account. The answer is (-4)
Solve the equation.
2/7+3/7
5/7
The opposite of 5
-5
-3 + (-5)
-8
5 - 10
-5
Which number is bigger -1 or -10?
-1
Numbers greater than zero
positive integers
Why is this incorrect? (63) - (-13) = 50
the numbers were subtract as if not (-13). Answer should be 76
Solve the equation.
9/5-6/5
3/5
|-42|
42
1 + (-11)
-10
-9 - 0
-9
Which number is bigger |-5| or |-10|?
|-10| = 10
What is a number line?
The number line consists of integers that are both positive and negative.
Why is this incorrect? To model 3 - 7, you draw 10 negative signs.
You should:
draw 3 plus signs for the 3
then
draw 7 negative signs for the 7
you would have four negative signs left
Solve the equation.
2 1/6 + 5/6
3
The integers that come just before and just after -7.
-6 and -8
13 + (-6)
7
-6 - (-8)
2
Order from least to greatest: 0, -2, 4
-2, 0, 4
What is the opposite of adding?
The opposite of adding is subtracting
Why is this incorrect? You cannot use a number line to show subtraction of integers with different signs
You can use a number line to show all operations with integers.
Solve the equation.
4 9/5-2 8/5
2 1/5
The numbers left of zero on a number line are called ______________.
Negative integers
-4 + 2 + (-2)
-4
4 - (-6)
10
Order for from least to greatest: -7, 2, -3, 0
-7, -3, 0, 2
All positive counting numbers plus zero
Whole numbers
Why is this incorrect? The absolute value of 4 is (-4)
Absolute value of 4 is 4 since the 4 is 4 units away from zero
Solve the equation.
4 1/2+1 3/8
5 7/8
This is neither positive nor negative.
zero
-6 + 3 + (-2)
-5
Two different values can make this equation true: (x) - (y) = -1
[various answers possible] x is positive and one less than the positive y
l-1l, 4, -l-2l, 0, 3, -5 from greatest to least
4, 3, 1, 0, -2, -5
Any number that can be written as a fraction
Rational number
Why is this wrong? - | -10| = 10
|-10| = 10
However, don't forget the negative sign outside the absolute value.
Therefore, - |-10| = -10
Solve the equation.
18 2/3-6 1/6
12 1/2