Some prefixes (such as uni, bi, tri, quadra, deca) are added to root or base words to tell how many.
Examples:
unicycle  vehicle that has 1 wheel
unicorn  animal with 1 horn
uniform  is dress made in 1 style for all students
bicycle  vehicle that has two wheels
biped  is an animal with 2 feet
bilingual  person speaks 2 languages
tricycle  vehicle that has 3 wheels
tripod  camera stand with 3 feet.
tricolor  flag with 3 colors.
trimester  contains 3 months.
triangle  shape with 3 sides and 3 angles.
quadruped  animal with 4 feet.
quadruplet  is one of 4 children born at the same time
quadrangle  a geometric figure with four angles (sides)
decagon  a shape with 10 sides
decapod  an animal with 10 legs and feet
decathlon  an athletic contest consisting of ten different track and field events
Directions: Answer the following questions. Write sentences using the number words given above.
