1st 9 weeks
In order of operations, what part of the expression do you solve first?
the problem in the parenthesis
What do you have to do, before solving, if you are dividing by a decimal?
Move the decimal to the right to make it a whole number
When adding or subtracting fractions with unlike denominators, what do you need to do??
Find the LCD (least common denominator)
TWO- the "x" coordinate and the "y" coordinate
Which direction do vertical lines go?
Up and Down
1/100 as a decimal is
0.01
a decimal and zero
How do you change a Mixed Number to an improper fraction?
12 4/5 = 64/5
Multiply the denominator by the Whole number, then add the numerator
(bottom x big + top)
How do you find the volume of a rectangular prism?
Length x width x height
lwh
When plotting on a coordinate plane, which direction does "x" go?
horizontal or side to side
If I am multiplying by 0.001, is my original number getting bigger or smaller?
Bonus: Solve- 153.26 x 0.001
smaller
0.15326 :)
At the end of a multiplication problem with decimals, how do you know where to put your decimal in the answer?
2.09 x 1.3
You count how many numbers are behind the decimal points.
If you are dividing fractions, what steps do you need to take to solve?
1st fraction stays the same
the division sign turns to a multiplication sign
You change the 2nd fraction to its reciprocal (opposite)
What shape has more vertices-a square/rectangular pyramid or triangular pyramid?
How many more??
Square/rectangular pyramid
1 more vertex
Is this an expression or equation?
3 + 9
Expression- it contains numbers and operations but not an equal sign
Equations contain equal signs
What does the "B" stand for in CUBES?
Box in Key Words
Without solving, how can you "guess" or figure out what the answer will be close to?
Estimate
A= length x width
When you know the area, but need to find the missing length or width?
How do you find the median of a data set that has doesn't have a middle number?
(All steps are required for full 400 points)
You need to put the numbers in order from least to greatest.
If there is no middle number, then find the 2 middle numbers.
Add them up, divide by 2.
That is your median.
What does "congruent" mean?
The same or equal
Write this expression in number sentence
Subtract seventy-one and sixty-five hundredths from eighty five and two tenths
85.2 - 71.65
You use 50 x 4 to estimate 45 x 3.56. Is this an overestimate or underestimate?
Explain your answer for full points.
Overestimate
I rounded 45 up to 50 and 3.56 up to 4. Since I rounded both numbers up, it is an "overestimate". Both numbers are larger than the original factors.
Which unit of measure does not refer to length?
millimeter
liters
miles
yards
liters
Classify a triangle that has angles that are 80, 80, and 20 degrees.
The sides are 15 yards, 9 yards, and 12 yards.
The triangle is:
acute scalene triangle
What is the answer to an addition problem called?
What is the answer to a subtraction problem called?
What is the answer to a multiplication problem called?
What is the answer to a division problem called?
Now put them in ABC order :)
difference
product
quotient
sum