Geometry and Probability
The perimeter of a circle is called the _____.
Circumference
To add fractions with the same denominator, add the ____ and keep the denominator.
numerators
The digit 8 in 67.89 is in the ____ place.
50% is equivalent to the fraction _____.
1/2
A number is divisible by 5 if the last digit is ____.
0 or 5
Circumference formula using diameter: C= _____.
πd (pi x d)
Write 25/6 as a mixed number.
4 1/6
When adding/subtracting decimals, line up the _____.
decimal points
Write 75% as a reduced fraction.
3/4
A prime number has exactly ____ factors.
2
A right angle measures ____ degrees.
90
To find the reciprocal 3/4, you ____ the numerator and denominator.
Flip/switch them (get 4/3)
Dividing a decimal by 10 moves the decimal point ____ place(s) to the left.
1 place
A ratio of boys to girls can be written “13 to 15,” “13:15,” or as the fraction _____.
13/15
Find the GCF of 12 and 18.
Probability is written as a fraction or ____________ and chance is written as a ____________.
decimal / percentage
“Common denominators” means the fractions have the same _____.
Denominators
To divide by a decimal number (like 0.4), you can multiply dividend and divisor by a power of ____ to make the divisor whole.
10 or 100
A rate is a ratio that compares two different types of _____.
measurements/units
The LCM is the ____ common multiple of two numbers.
least
A polygon is a closed, flat shape with ____ sides.
straight
Dividing by a fraction means multiplying by the ____ of the divisor.
Reciprocal
Round 10.381 to the nearest tenth.
10.4
What is 80% of 25?
20!
What is the GCF of any two prime numbers?