Fractions
What is 4/6 simplified?
2/3
2 times 2 is 4, and 3 times 2 is 6= 4/6
You have 12 spaces to fit through. There are 6 spaces that aren't open. How many spaces are open? Write as a fraction.
6/12 are open or 1/2
6 are open out of 12. You take the number of open spaces as your numerator and the total number of spaces is 12 as your denominator. Which can then simplify to 1/2
What is 90?
1
Anything with an exponent of 0 is 1
What is the square root of 9?
3
What is the opposite of -16
16
What is 2/3 times 10/15 simplified
4/9
You first get 20/45. You can divide both numerator and denominator by 5 and you can gey 4/9.
What is the theoretical probability of flipping a fair coin and landing it on heads? Write the answer as a fraction.
1/2
There are 1 out of 2 heads and 1 out of 2 are tails on a coin
What is 154?
50,625
You would do 15 x 15 x 15 x 15
What is a perfect square?
A number that has a number that can be multiplied by itself to get that number. Like 3x3=9 so 9 is a perfect square.
What is -86+67
-19
what is 2/3 divided by 4/5 simplified?
5/6
You first get 10/12. You can either divide both by 2 and get 5/6.
What is the definition of experimental probability?
You get the data when you actually perform that task. What actually happens. The opposite of theoretical probability.
What is 95?
59,049
You would do 9 x 9 x 9 x 9 x 9
Is 30 a perfect square?
No
What is -98+(-90)+25
-163
5/7 divided by 8/10 simplified?
25/28
you first get 50/56. You can then divide the numerator and the denominator by 2 and you will get 25/28.
You have 7 total marbles in a bag. There are 2 red, 2 blue, and 3 yellow. You pick a yellow marble, put it back in the bag and then you pick another yellow. What is the probability of picking both yellow?
3/7 times 3/7= 9/49
You would take the amount of marbles times the number of yellow marbles and then multiply them together.
What is 77?
823,543
What is the square root of 400
20
What is (-195)-86+210
-71
4/3 times 9/5
2 2/5: 12/5
You first get 36/15. You can then divide the numerator and the denominator by 3 and then you get 12/5 which can be 2 2/5 as a mixed number.
You have 7 marbles and you pick a marble. You don't replace it and pick another marble. What kind of event is this?
Dependent event.
In a dependent event, you don't put back what you already have drawn. It is the opposite of an independent event
What is 99?
387,420,489
What is the square root of the number 225 and 256?
15:16
What do you do when you subtract integers?
You would turn the subtraction sign, to the addition sign and change the sign of the second number. Then you just add.