Integers
The integer that represents the following statement: "15 yard loss"
-15
Which Number is bigger 8 or 6?
8
12 + 4
16
15 - 7
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)
The sum of two negative integers is always positive.
False because...you are to the left of zero and go more negative.
The opposite of 5
-5
Which number is bigger -1 or -10?
-1
-3 + (-5)
-8
5 - 10
-5
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
An integer and the absolute value of that integer are always opposites.
False because...
6 and the absolute value of 6 are not opposites
Only sometimes true if negative signs are used in the problem
|-42|
42
Which number is bigger |-5| or |-10|?
|-10| = 10
1 + (-11)
-10
-9 - 0
-9
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
Adding or subtracting rational numbers is not done in math
False because...all rational numbers can be converted to fractions and fractions can be added and/or subtracted.
The integers that come just before and just after -7.
-6 and -8
Order from least to greatest: 0, -2, 4
-2, 0, 4
13 + (-6)
7
-6 - (-8)
2
What is 2.1234...
Non-terminating, repeating decimal, rational number
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.
False
The whole numbers left of zero on a number line.
Negative integers
Order for from least to greatest: -7, 2, -3, 0
-7, -3, 0, 2
-4 + 2 + (-2)
-4
4 - (-6)
10
What is the opposite of adding?
The opposite of adding is subtracting
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
If my biggest number is positive, my answer should be positive
True
This is neither positive nor negative.
zero
l-1l, 4, -l-2l, 0, 3, -5 from greatest to least
4, 3, 1, 0, -2, -5
-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
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
-10 - (-5) - (-3) = -18
False