How do you add and subtract decimals?
Line up the decimal and place values, bring the decimal down, add or subtract as usual
Counting numbers (whole numbers), their opposites, and 0 are all..a
a) Fractions
b) Integers
c) Decimals
d) All of the above
b) Integers
Explain the difference between multiplication and exponents.
Multiplication represents repeated addition and exponents represent repeated multiplication.
Explain the difference between an expression and an equation.
An expression does not have an equal sign
An equation does have an equal sign.
A ratio is a comparison of two quantities (amounts).
How do you multiply a whole number with a fraction?
Turn the whole number into a fraction by putting it over 1, then multiply across (numerator with numerator, denominator with denominator).
What is the opposite of - .75?
+ .75
Identify whether the expression below is numeric or algebraic.
6(7+3)
Algebraic Expression
Which value of the variable is the solution of the equation?
a + $5.92 = $12.29
$6.37
True or False
A ration can compare a part to a part, or a part to a whole.
True
Quotient, split into, fraction, ratio, equal groups of all represent what operation?
Division
-2/5 > - 1.4
Which statement is true about the comparison above?
a) Both rational numbers are to the left of zero, and -2/5 is the left of -1.4.
b) Both rational numbers are to the left of zero, and -2/5 is the right of -1.4.
c) Both rational numbers are to the right of zero, and -2/5 is the left of -1.4.
d)Both rational numbers are to the right of zero, and -2/5 is the right of -1.4.
b) Both rational numbers are to the left of zero, and -2/5 is the right of -1.4.
A letter that represents an unknown number is a what?
A variable
In which equation would you multiply both sides by 4.5 to get the variable alone?
A) 6.1p = 4.5
B) p ÷ 6.1 = 4.5
C) p ÷ 4.5 = 6.1
D) 4.5p = 6.1
C) p ÷ 4.5 = 6.1
The chorus at an elementary school is made up of fifth and sixth graders. This year, the chorus has 12 fifth-grade girls, 9 fifth-grade boys, 14 sixth-grade girls, and 10 sixth-grade boys.
Write a ratio to represent the amount of girls to boys.
26/19
Chris and Jeff sold 15.5 pounds of trail mix. They sold the trail mix for $3.98 per pound.
How much money did they collect?
$61.69
Explain why -7 has a greater absolute value than 6.
Absolute value measures distance. Therefor, -7 has a greater distance from 0 than 6 does.
Use the Distributive Property to complete the equivalent expression.
4(y – 3) =
4y - 12
Which inequality represents the situation?
The maximum weight, w, an elevator can lift is 2,200 pounds.
A) w ≥ 2,200
B) w > 2,200
C) w ≤ 2,200
D) w < 2,200
C) w ≤ 2,200
What two operations can be used to create equivalent ratios?
Multiplication and Division
Raven is making pillows. Each pillow requires 3/5 yard of fabric. Raven has 6 yards of fabric. How many pillows Raven can make?
10 pillows
In which quadrant would the point (-5, -7) lie in?
Quadrant III
Simplify the following expression
3y + 7 + 4y + 3
7y + 10
Which inequality is graphed on the number line?
A) t > 9
B) t < 0
C) t < 6
D) t > 6
C) t < 6
Create three ratios that are equivalent to 4:12
1:3, 2:6, 8:24, 12:36