Fractions and
Mixed Numbers
Mixed Numbers
What are the steps to add or subtract fractions?
1. LCD
2. add/subtract numerators
3. denominator stays the same
4. Rename if needed
In this equation what do you solve first? 16 - 9 + 4
16-9
In order to add or subtract decimals you must first do what?
Line up the place values
What are the two formulas to find volume?
l x w x h
height x base
Which figure can always be classified as a rectangle?
square
List the steps to solve this equation: 3 1/2 + 2 6/9
1. LCD
2. add whole numbers
3. add fractions
4. rename fraction
5. add whole number to renamed fraction
0.72 x _____ = 72
102
List the steps to multiply decimals.
1. Stack the numbers
Place the decimal numbers one on top of the other, with the one having more digits on top.
2. Ignore the decimal points
Treat the numbers as whole numbers and multiply them normally
3. Count the place values after the decimals in your factors.
4. Place the decimal point in the product
5. Check your answer
Give me two different dimensions for a prism with a volume of 54 cubic units. (1 unit may not be a dimension)
2 x 3 x 9
3 x 3 x 6
Why is the following explanation incorrect?
Only some rhombuses are parallelograms. Parallelograms have 2 pair of parallel sides.
List the steps to solve this problem: 2/3 x 1/2.
1. multiply numerators
2. multiply denominators
Carlie enters the number 1,359 in her calculator, then uses one calculation and gets a result of 13.59. What calculation did Carlie use?
Divide by 100 or Divide by 102
1. move the decimal point out of the divisor. What you do to the divisor you must do to the dividend.
What is the acronym for metric conversions?
king henry doesn't usually drink chocolate milk
Levi drew a shape with the following properties:
more than 3 sides
at least 1 pair of parallel sides
exactly 2 pairs of sides with equal lengths
What shapes could Levi have drawn?
Rhombus
parallelogram
rectangle
square
rhombus
List the steps to solve this equation: 1/2 divided by 3.
1. make both numbers a fraction
2. rewrite equation: keep 1/2
change divide to multiply
flip 3/1 to 1/3 (reciprocal)
3. multiply numerators
4. multiply denominators
Write an expression for this problem: Julie has $15. She sells her vanity for $100 on an auction site. She must pay the $12 fee to the auction site. Julie then splits the money she made from the auction equally with her two brothers. How much money does Julie have now?
(100 - 12) / 3 + 15
What are the 3 base metric units.
Liter
meter
gram
What is true of every rhombus that is also true of every parallelogram?
A rhombus has 2 pairs of parallel sides
List the steps to solve this equation: 4 1/6 x 3 2/7
1. change both mixed numbers into improper fractions
2. multiply numerators
3. multiply denominators
4. change improper fraction to a mixed number by dividing
add 3 and 7, then multiply the difference of 9 and 5 divided by 2.
(3 + 7) x [(9-5) / 2]
Large to small ----> __________
Divide
multiply
Which statement is true?
All octagons are polygons because they have at least 3 sides
All parallelograms are rectangles because they have 2 sets of parallel sides
all rhombi are squares because they have 4 sides that are all the same length
All octagons are polygons because they have at least 3 sides