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Equivalent
Fractions
Algorithms
Vocabulary
Place Value
Conversions!
100
1/4 = ?/8
2/8
100
What do you get if you multiply the numerator AND denominator by the same nonzero whole number?
Equivalent Fraction
100
(a)What word is used to mean the number that represents how many parts of that whole are being considered? (b) What word is used to mean the number that represents the total number of parts created from the whole.
(a) numerator, (b) denominator
100
Consider this number: 82,476,902. What is the value of the digit in the thousands place?
6,000
100
How many ounces are in 1 pound?
16 ounces (16 oz)
200
6/9 = 18/?
18/27
200
What do you get when you multiply top and bottom of each fraction by the denominator of the other.
Common Denominator
200
What do we call different fractions that name the same number?
equivalent fraction
200
Consider this number: 82,476,902. What is the value of the digit '8'?
80,000,000 or 80 million
200
How many yards are in 36 feet?
3 yards
300
52/300 = 13/?
13/75
300
If you can just add or subtract the numerator to get an answer then the ____________ ___ ____ _____.
the denominator is the same or is a common denominator
300
What do we call it when two or more fractions have the same denominator?
common denominator
300
Solve this riddle: I have 5 digits. My 5 is worth 50,000. My 8 is worth 8,000. My six is worth 60 and all other digits are a 3. What number am I?
58,363
300
If it takes 20 minutes for a batch of cookies to bake in the oven, and I need to bake 6 batches of cookies, how many hours will I be baking the cookies if they have to be baked one-after-the-other?
2 hours 20*6=120 minutes 120(total minutes to bake)/60(minutes in an hour)= 2 hours
400
274/22 = ?/66
822/66
400
What are the 3 steps to multiplying fractions?
1. Multiply the top numbers (the numerators). 2. Multiply the bottom numbers (the denominators). 3. Simplify the fraction if needed.
400
What is it called in arithmetic to describe that any time you multiply a number by 1, the result, or product, is that original number?
Multiplicative Identity Property
400
Solve this riddle: I am the largest 5 digit number you can write with the numbers 5,9,2,6,4 What number am I?
96,542
400
Mr. Marchesi has to run 3 miles for the Air Force PT evaluation this weekend. He is NOT looking forward to it! How many feet will he run at the base altogether? Hint: There are 5,280 feet in a mile!
15,840 (5,280*3)
500
109/76 = 654/?
654/456
500
What are you doing if you invert and multiply?
dividing fractions
500
In the division problem 38/19=2, what is the academic vocabulary word that is represented by the: a) 38 b) 19 c) 2?
a) dividend; b) divisor; c) quotient
500
Solve this riddle: I have 5 digits. My 4's are worth 4 [10,000s] and 4 x 10. One of my 3's is worth 3 [1,000s] while the other 3 is worth 1/10 as much as that. My other digit it a 2. What number am I?
43,342
500
Mr. Marchesi's PT test at the base this weekend includes running 3 miles in under 22 minutes. What should his one-mile pace be under?
under 7 minutes and 20 seconds