Number Sense Showdown!
This mathematical symbol tells you the distance a number is from zero, regardless of positive or negative.
What is absolute value?
I compare two quantities by dividing them. What am I?
(A ratio)
I measure the total length of all the sides of a closed figure added together. What am I?
The perimeter
measure a single side of a 3D shape. What am I?
(A dimension)
I express a mathematical relationship between expressions that are not equal, often using symbols like < or >. What am I?
(A linear inequality)
Example: 3x + 5 < 10 (This inequality expresses that 3x plus 5 is less than 10)
I can be a whole number, a fraction, or a decimal, and you can arrange me on a number line according to size. What am I?
(A rational number)
Out of one hundred, what number represents a certain portion?
(A percent)
I represent the distance around a circle. What am I?
(The circumference)
I represent the total area of all the faces on a 3D figure added together. What am I?
(The surface area)
Solve the inequality: 2x ≥ 6
Simplify the inequality, then the value of x will be
x ≥ 6/2
x ≥ 3
A number that divides evenly into another number, with no remainder, is called a...?
(A factor)
If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar?
(2:3)
The length multiplied by the width gives you my value for a rectangle. What am I?
(The area)
The length, width and height multiplied together give you my value for a box. What am I?
(The volume)
Solve: x - 10 < 1
Example: If you have an inequality like x - 10 < 1 and add 10 to both sides, the inequality remains true because of the addition property. The new inequality would be x < 11.
I am the opposite of a factor. If you multiply me by a number, you get another number. What am I?
(A multiple)
To find a percent, I divide by this number and multiply by one hundred. What is it?
(A denominator of a ratio representing 100)
I can be a square, a rectangle, a triangle, or even a circle! What am I?
(A two-dimensional figure)
I can be a cube, a pyramid, a sphere, or even a cone! What am I?
(A three-dimensional figure)
By adding or subtracting the same number from both sides, I maintain the inequality. What principle am I using?
(The addition/subtraction property of inequality)
A tiny little number raised to a power tells you how many times to multiply the base by itself. What is this concept called?
(Exponents)
I can enlarge or shrink an object while keeping its proportions the same. What am I? (Hint: Scale ___)
(A scale factor)
If a square has a side length of 5 cm, what is its perimeter?
(20 cm)
If a cube has a side length of 4 meters, what is its volume?
(64 cubic meters)
At a bakery, muffins cost $1.25 each and cookies cost $0.75 each. Sarah wants to spend less than $8 on baked goods. Let:
Write an inequality to represent how much Sarah can spend.
1.25m + 0.75c < 8
Explanation:
This inequality shows that the combined cost of muffins and cookies (1.25m + 0.75c) needs to be strictly under $8 for Sarah to stay within her budget.