12. jumping kangaroo is practicing for the animal olympics. his longest jump during the
training was 55 dm 50 mm long, but in the finals of the olympics he won with a jump th
was 123 cm longer. how long was jumping kangaroo's longest jump during the olymp
(remember that i m = 10 dm. 1 dm = 10 cm. and 1 cm = 10 mm)
(c) 5 m 55 cm
(a) 6 m 78 cm
(d) 11 m 28 cm
(b) 5 m 73 cm
(e) 7 m 23 cm
13. paul chose a certain number, subtracted 203 from it, and then added 2003 to the differe
his final result was 20003. what number did paul choose at the beginning?
(a) 23
(b) 17797
(c) 18203
(d) 21803
(e) 222