Adding Fractions
Write an equation to show 5/6 as the sum of unit fractions.
1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 5/6
Solve: 3/4 - 2/4 = x
x = 1/4
The students in Mrs. Smith's class measured their pencils to the nearest 1/4 inch. The measurements they gathered were:
(4 2/4), (5), (4 3/4), (5 2/4), (5), (6 1/4), (6),
(5 3/4), (4 2/4), (6 3/4), (5 3/4)
What is the length of the longest pencil?
6 3/4 inches
Draw a square on your white board. How many lines of symmetry does the square have?
4
If the size of an angle is between 0-90 degrees, what type of angle is it?
Acute
Decompose the fraction 7/12. Write an equation to show the fraction as a sum of fractions with the same denominator.
Answers may vary.
Ex. 5/12 + 2/12
Solve: 4 5/6 - 3 2/6 = x
x = 1 3/6 or 1 1/2
The students in Mrs. Smith's class measured their pencils to the nearest 1/4 inch. The measurements they gathered were:
(4 2/4), (5), (4 3/4), (5 2/4), (5), (6 1/4), (6),
(5 3/4), (4 2/4), (6 3/4), (5 3/4), (4)
What is the length of the shortest pencil?
4 inches
Draw a hexagon on your white board. How many lines of symmetry does a hexagon have?
6
If the size of an angle is more than 180 degrees, what type of angle is it?
Reflex
Decompose the fraction 1 3/4. Write an equation to show the fraction as a sum of fractions with the same denominator.
Answers may vary.
Ex. 4/4 + 1/4 +1/4 +1/4
Solve: 3 1/4 - 2 3/4 = x
x = 2/4
The students in Mrs. Smith's class measured their pencils to the nearest 1/4 inch. The measurements they gathered were:
(4 2/4), (5), (4 3/4), (5 2/4), (5), (6 1/4), (6),
(5 3/4), (4 2/4), (6 3/4), (5 3/4), 4
What is the difference in lengths between the longest and shortest pencils?
(6 3/4) - (4) = (2 3/4) inches
(Draw a trapezoid on the board) How many lines of symmetry does this trapezoid have?
0
If the size of an angle is exactly 180 degrees, what type of angle is it?
Straight
Solve: 6/10 + 20/100
80/100 or 8/10
Solve: 5 2/5 - 3 3/5 = x
x = 1 4/5 or 9/5
The students in Mrs. Smith's class measured their pencils to the nearest 1/4 inch. The measurements they gathered were:
(4 2/4), (5), (4 3/4), (5 2/4), (5), (6 1/4), (6),
(5 3/4), (4 2/4), (6 3/4), (5 3/4)
What would be a good title for this line plot?
Example: Size of pencils in Mrs. Smith's class
If a square equals 1/2, draw what the whole would look like.
What type of angles do squares have? How many degrees do each angle measure?
Right; 90 degrees
Solve: 3 3/5 + 2 4/5
6 2/5 or 32/5
Solve: 6 3/10 - 4 50/100 = x
x = 1 8/10; 1 80/100, 180/100, 18/10
The students in Mrs. Smith's class measured their pencils to the nearest 1/4 inch. The measurements they gathered were:
(4 2/4), (5), (4 3/4), (5 2/4), (5), (6 1/4), (6),
(5 3/4), (4 2/4), (6 3/4), (5 3/4)
What would be a good label for this line plot?
Example: Length (in inches)
FINAL JEOPARDY:
Rob’s mother has $300 to spend on her son’s school clothes. At the store Rob chooses 4 dress shirts at $17 each, 5 T-shirts at $8 each, and 5 pairs of jeans at $16 each. He also wants the sneakers that cost $43 and the dress shoes that cost $55. If his mother buys all these items, how much money will she have left?
$14
Draw an arrow pointing down. If you moved that arrow on a 1/2 turn going counterclockwise, which way would the arrow be pointing? (Don't forget to draw an arc showing the direction of the turn.)
Line should be pointing North with an arc turning toward the right.