Number Systems
0 belongs to which number systems
Whole, Integer, Rational
Add the integers
19 + (-31)
-12
Divide the fractions. Simplify the product.
(1/2) / (3/5)
5/6
Add the fractions. Simplify the sum.
1/14 + (-3/14)
-1/7
A bird is flying 1200 feet above the sea level. At a particular point, it is directly above a fish floating at 400 feet below the sea level. By how much the bird must descend its flight to be as far as from the sea level, as the fish is?
800 ft
Subtract the integers
-2/3 belongs to which number systems
Integer, Rational
Add the integers
(-88) + 18
-70
Multiply the fractions. Simplify the product.
(3/10) x (5/6)
1/4
Add the integers. Simplify the sum.
7/24 + 11/24
3/4
The temperature of a hot iron rod drops by 8°𝐶 every hour. If the temperature of the iron rod is 118°𝐶, find the temperature after 4 hours.
86 degrees
33 belongs to which number systems
Natural, Whole, Integer, Rational
Add the integers
10 - (-10)
20
8*3/8
3
Subtract the integers. Simplify the difference.
3/5-(8/5)
-1
Jack is playing a video game in which he wins 15 points for a win at the end of a level and loses 10 points at every foul. If he wins 20 levels and made 12 fouls, find the total points earned by him in the whole game.
180 points
1.1908798654..... belongs to which number system
Irrational
Subtract the integers
-18 + 10 - 22
-30
Multiply the fractions. Simplify the product.
1/2 x 3/5 x 2/10
3/50
4/9 + 3/6
17/18
Sara and 4 friends collected 2 ¾ bags of candy while Trick-or-Treating. If they split the candy equally, what amount of candy would each person get?
11/20
Can a decimal be both a rational or irrational number?
Yes, it depends if the decimal is repeating or terminating it is rational, if not it is irrational.
Subtract/Add the integers
17 - (-3) - 20 + (-40)
-40
Multiply the fractions. Simplify the product.
12/20 x 1/2 x 5/7
3/14
Add the fractions. Simplify the sum.
11/12 + (-3/4)
1/6
In a school 2/5 students play soccer and 3/7 of the soccer players also play basketball. If there are 210 students in total, how many students play both soccer and basketball?
36 students play both soccer and basketball.