Fractions
Name an equivalent fraction for 8/12.
2/3, 16/24, etc.
How many degrees do acute, right, and obtuse angles measure?
acute = less than 90
right =90
obtuse = more than 90 but less than 180.
What strategy can you use to multiply 156 x 18?
area model, standard algorithm, etc.
This tool is used to measure angles:
protractor
What is the difference between parallel and perpendicular lines?
Parallel lines will never touch, while perpendicular lines are intersecting lines that create right angles.
What fraction can be added to 5/9 to equal 1 whole?
4/9, because 5/9 + 4/9 = 9/9 (1)
The hands of a clock at 6 o'clock make this type of angle.
Straight angle/180 degrees
What is the value of 178 รท 8?
22 r 2
The perimeter of a square floor is 120 feet. What is the length, in feet, of each side of the floor?
A 20
B 30
C 40
D 60
B: Perimeter means adding up the sides. 30+30+30+30 = 120.
True or False: All squares are rectangles.
True
Which symbol makes this true: 3/8 ___ 1/2?
3/8 < 1/2
The hands of the clock at 3 o'clock make this angle.
90 degrees/right angle
What is the product of 3 and 2,470?
7,410
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How many lines of symmetry does a square have? Why?
4
Evelyse is training for track. She runs 5/7 of a mile every day. How many miles will she run in 8 days?
40/7 miles or 5 5/7
Two angles make a straight line. One angle is 50 degrees. What is the measurement of the other angle.
130 degrees
What is the product of 4,213 and 6?
25,278
What is 13,864 rounded to the nearest hundred?
13,900
What is 145,326 rounded to the nearest hundred?
145,300
You have 24 candles. You give away 3/4 of the candles. How many did you give away?
18
1/4 of 24 = 6
6x3 = 18
If one angle is 30 degrees and forms a right angle with another, what is the measurement of the missing angle?
60 degrees
A teacher buys blue and red folders. She buys 4 times as many blue folders as red folders. She buys 12 red folders. What equation can you use to solve? How many blue folders did she buy?
equation: 12 x 4 = ?
answer: 48 blue folders
A concert has 12,389 people. About how many people is that to the nearest thousand?
12,000
What is a benchmark fraction? How can you use 1/2 as a benchmark fraction to compare 3/4 and 2/6?
A benchmark fraction is a fraction that can be used to compare other fractions. For example, 1/2 can be used to compare 3/4 and 2/6 because we know 2/4 = 1/2 and 3/6 = 1/2, so 3/4 > 2/6.