Adding
-5 + 9 =
4
Different signs, Subtract and keep positive sign because more positives then negatives
What is the answer to an addition problem called?
The sum
What is number do we add with Identity Property? (The identity of the number does not change)
Zero. Adding zero to a number never changes its value.
-5 * 9 =
-45 different signs, negative product or quotient
-99 / 9 =
-11 Different signs, negative quotient or product
-15 + (-20) =
-35
All negatives. Add and keep sign they have in common
What is product ?
The ANSWER to a MULTIPLICATION problem
Additive Inverse property shows that the sum of a number and its opposite is always equal to _____.
Zero. When we add a number and its opposite we always get zero as a sum.
(-25)(-3)=
75 Same signs result in a positive product or quotient
0 / 23 =
Zero. When zero is divided by a number the quotient is usually zero
-25 + 3 =
A. Positive sum
B. Negative sum
B. Negative sum because there are more negatives then positives.
The negative number has the greatest absolute value.
What is Quotient?
The ANSWER to a DIVISON problem
Communitive property shows that a change in order doesn't change sum. Which example shows communitive property?
A. 8 + 9 = 9 + 8 B. 4 - 3 = 3 - 4
A. 8 + 9 = 9 + 8
Both sides of equation give 17 as a sum. The order doesn't change the sum.
What number fills in the blanks
______ * 10 = -110
-11
-8 divided by 0 =
Undefined. Dividing by zero gives an undefined quotient
Fill in the blank
-8 + ____ = 2
+10
What is Difference?
The ANSWER to a SUBTRACTION problem
Associative property shows that a change of grouping doesn't change the sum.
What is a grouping symbol?
(Parenthesis)
True or False
A negative times a negative is negative
-7(-5) = -35
False
A negative times a negative is positive
Same signs multiplied or divided give a positive
True or False
A positive divided by a negative is negative
(9)(-3) = -27
True
Different signs results in a negative quotient or product
Turn 4 - (-2) into addition by adding the opposite
4 + 2 = 6
The term for each positive paired up with one negative. (3 words)
Zero Sum Pair
Associative property shows that a change of grouping doesn't change the sum. Does (1+2)+3 = (2+1)+3 show associative property?
No. There is no change in the numbers inside the group. It has the same numbers inside the ().
(-4) * (-3) * (-1) * (-2) results in a ______ product.
A. Positive B. Negative C. Neutral
A. Positive
(-4)(-3) = positive (same signs)
(-1)(-2) = positive (same signs)
(positive)(positive) = positive
What is the only number that zero can not be divided by? Usually zero divided by a number equals zero. Ex
0 / -7= 0
Zero. Any number that is divided by zero gives an undefined quotient.
-7/0=und