Word Problems
Trevor lives in Texas. He said that the temperature increased by 4.9°F per hour. It is 9:00, and the temperature is -47°F. After 6 hours, what is the temperature in Texas?
-17.6°F
-37 x 43
-1591
Franklin says that -(-16) x 49=(-784). Is he correct or incorrect, what was his mistake, and what was the correct answer? Explain.
He is incorrect. He thought 2 negatives outside of 16 meant that the number was negative, but it was positive because two negatives cancel each other out. The answer was 784.
4x(-6)=(-6)x4. What property does this example describe?
The Communitive Property of Multiplication of Integers
764 x (-42)=?
What is the answer?
-32,088
Franklin grows tomatoes and sells them. The Tomato starts growing 0.5 feet below the ground each day. Over the course of two weeks, how far is the tomato below the ground?
-7 feet below the ground.
17 x -51
-867
-699 x 701=(-489,998)
False
(5 x -3) x 2= -30
5 x (-3 x 2)=-30
What property does this example describe?
The Asscociative Property of Multiplication of Integers.
7 x (6 + -3)=21
(7 x 6) + (7 x -3)=21
What property does this equation show?
The Distributive property of the Multiplication of integers.
Jan is a diver. She dove 40 feet underwater, then saw a shark above her. She dove down four times her original location to hide. What is Jan's current position underwater?
-160 Feet Underwater.
95 x -17
-1615
Jan says that -6x7=-42
True
4 x (-3 + 6) =12
(4 x -3) + (4 x 6) =12
What property does this example describe?
The Distributive Property of Multiplication of Integers.
Renee says that the Communitive Property is the fact that the numbers could be in any order and still result in the same product. True or False?
True.
Joe is $99 in debt. Three of his friends each give him $45. How much money does he have now, and is he still in debt?
$36 (No, he is not in debt anymore).
-78 x 49
-3822
A positive multiplied by a negative is positive?
False
-16 x 3=3 x (-16).
What property does this equation show?
The Communitive Property of the multiplication of Integers.
Every 5 minutes, a football team loses 4 yards. After 25 minutes, how many yards would the football team have lost?
-20 Yards
John withdraws $68 from his savings account containing $128. What is the current balance in John's savings account?
$60 in his savings account
-92 x 34
-3128
If two numbers you are multiplying have the same sign (positive or negative), will the result be positive?
True
A (B+C)=AxB+AxC.
What property does this example show?
The Distributive Property of the Multiplication of Integers.
-674 x -42=?
28,308