Year 1 Homework #22

Name ________________________

1). (1 point each) Find the circumference of these circles
(use C =D and ):

a). diameter (D) = 7 inches

C = _______

 b). diameter (D) = 5.5 inches

C = _______

 c). radius (R) = 8 cm

C = _______

d). diameter (D) = 6 feet

C = _______

 e). radius (R) = 5.5 feet

C = _______

 f). radius (R) = 16 inches

C = _______
2). (1 point each) Write out all of the possible permutations of the letters in these words:

a). HI


b). ACE


c). CAR


d). AM


e). TOY


f). MUSH


3). (1 point each) Find the number of different ways to order the letters in these words:
a). HO

_______ ways

 b). FOUL

_______ ways

 c). STOP

_______ ways

 d). FACTOR

_______ ways

e). OLYMPIA

_______ ways

 f). ABOUT

_______ ways

 g). PYRAMID

_______ ways

 h). DANGEROUS

_______ ways