Fractions to decimal
Fraction to decimal continued
Decimal to fraction
Greatest Common Factor
Word problems
100
1/2
What is .5
100
1/8
What is .125
100
.125
What is 1/8
100
The greatest common factor for 12 and 24 (What is the largest number that evenly divides into 12 and 24?)
What is 12
100
Which price is the least expressive? (a) The sale price of a dress marked 30% off. (b) The sale price of a dress marked 1/3 off. (c) The sale price of a dress marked 10% off and then 20% off the lower price.
What is b - 1/3 off would yield the least expensive amount. (a) if the dress was $100 then if is was 30% off the cost would be $100 - $30 = $70 (30% of 100 =.30 x 100 = 30) (b) 1/3 equals .333, so if the dress was $100, then 1/3 off would be $100 - $33.33 = $66.70 (1/3 of 100 =.333 x 100) (c) 10% of 100 = $10 and 20% of $90 = $18 so 100-10 = 90 and 90 - 18 =$72
200
1/3
What is .333...
200
1/10
What is .1
200
.50
What is 1/2
200
The greatest common factor for 36 and 24 (What is the largest number that evenly divides into 36 and 24?)
What is 12
200
The best ESTIMATE of (312 x 401,001)/ 589 (a) 2,000,000 (b) 200,000 (c) 20,000 (d) 2,000
What is b
300
1/4
What is .25
300
1/7
What is .142857142857... (repeating decimal)
300
.6666
What is 2/3
300
The greatest common factor for 60 and 75 (What is the largest number that evenly divides into 60 and 75?)
What is 15
300
In the number 2014, the value represented by the digit 4 is what fraction the the value represented by the digit 2?
What is 4/2000 or 1/500 (The 4 is the units digit - the ones digit. The 2 is the thousands digit - 2000. So make the fraction 4/2000 and reduce.)
400
1/5
What is .2
400
1/9
What is .11111... (repeating decimal)
400
.111111
What is 1/9
400
The greatest common factor for 36 and 56 (What is the largest number that evenly divides into 36 and 56?)
What is 4
400
If M is a negative integer, which of the following must be a POSITIVE integer? (a) M - 5 (b) -5M (c) 1/M (d) M + 5
What is b (Pick any number for M, let M = -10) (a) -10 - 5 = -15 (not positive) (b) -5 (-10) = 50 (negative times negative = positive) (c) 1/-10 is still negative and it is not an integer (d) -10 + 5 = -5 (not positive)
500
1/6
What is .1666...
500
2/3
What is .666...
500
.75
What is 3/4
500
The greatest common factor for 120 and 80 (What is the largest number that evenly divides into 120 and 80?)
What is 40
500
In a jar there are 20 blue marbles, 10 yellow marbles and 15 red marbles. You are taking out 2 marbles. What is the probability that the first marble pulled was blue and that the second marble pulled was yellow.
What is 10/99 The probability for the blue marble was 20/45 and the probability for the yellow was 10/44 (because there are only 44 marbles left after you pulled the first blue marble.) 20/45 x 10/44 (cross cancel)
M
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