Number Theories
A number that divides evenly into another number
Factors
What is the area of triangle?
1/2 bh
How many centimeter in one Kilometer?
100,000 cm
Convert 0.5 into fraction
1/2
44 - 2 x 9 = ?
26
The number that can only be divided by one and itself
Prime
What is the circumference of the circle?
2π r (or) π d
How many Liter in one Centiliter?
0.01L
Convert 3/50 into decimal
0.06
8 x (3 x 2 - 8) + 10 = ?
-6
Include 0 and all positive numbers, no decimals or fractions
Whole number
What is the volume of cylinder?
How many hours in one week?
168hrs
In a class, 3/4 percent are girls. What percent are boys?
1/4 = 25% are boys.
( 3 x 52 ÷ 15) - ( 5 - 22)
4
numbers that cannot be made into a fraction
Rational Numbers
What is the Surface Area of rectangular prism?
2 (LW + hL +HW)
How many ounces in three pound (Lb)?
1 ounce = 16 pound (Lb)
3 ounces = 3*16 =48 Lbs
Convert 12.5% into fraction
1/8
( -3 + 2) + 8 ÷ 2 x 4
15
numbers that follow after one another
Consecutive Numbers
What is the volume of cone?
1/3 π r2h
How many cup in one one gallon?
16 cups
In a survey of 100 people, 6 people did not know how to ride a bike. How many could ride a bike?
94% could ride a bike
(22 ÷ 2 - 2 x 5)2 + (4 - 6 ÷ 6)2
10