Vocabulary
A number less than zero is a...
What is a negative number.
Solve -111 + 17 =
-94
Solve 32 x -4 =
-128
A bird falls 6 feet from its nest in a tree. The integer that represents the problem would be...
-6
What is a comparison of two numbers using division? Example: 3 t shirts to 4 long sleeve shirts
What is a ratio
The distance of a number from zero is...
Solve -75 + -12 =
-89
Solve -51 x -7 =
+357
A person stands on a mountain top 2500 feet above sea level and then climbs down 1200 feet. What integer represents his change in elevation?
-1300
If 45 pencils cost $6, what is the unit rate per $1?
7.5 pencils/$1
The opposite of a number is...
Solve -88 - 90 =
-178
Solve -110/11 =
-10
A person climbs 1200 feet to the top of a cliff, then repels down 500 feet. What expression represents their change in elevation?
Ms. D is making cookies and needs 3 cups of flour to every 1/2 cup of sugar. If she is using 9 cups of flour, how much sugar will she need?
1 1/2 or 3/2 cups of sugar
This property states that we can add or multiply numbers in any order and the sum or product will stay the same.
What is the commutative property.
Solve -98 -(-104)
6
Solve -158/-79 =
+2
If sea level is 0, and a submarine dives down 1400 feet into the Marianna trench, then comes back up 750 feet to avoid an underwater mountain, then dives down 300 more feet; what expression represents the submarine's change in depth?
-1400 + 750 + -300 or -1400 + 750 - 300
Maria runs 5 miles every day. Is the relationship between the number of days she runs and her total miles ran proportional? Why or why not?
Yes, because if she ran 0 days she would run 0 miles, and for every 1 day she runs she runs 5 miles which makes a constant ratio of 1:5.
This property states that we can regroup numbers in addition or multiplication problems with parentheses and still get the same sum or product.
What is the associative property.
Solve |-198 -(-100)|
98
Solve -53/4 =
-13.25 or -13 1/4
The temperature is 25 degrees at 2pm. The temperature falls 3 degrees every hour until Midnight (12am). What is equation represents the change in temperature and what is the temperature at midnight?
Mr. B had 100 comic books from when he was kid. Every week since he became a teacher, he has bought 2 more comic books. Is the relationship between the number of weeks and the number of comic books Mr. B has bought proportional? Why or Why not?
No, because Mr. B started off with 100 comic books. 102 comic books:1 week is not an equivalent ratio to 104 comic books:2 weeks