Our first step should be to find the total distance Christina's frog has jumped. To do this, we need to add 1.22 m + .89 m, giving us a total of 2.11 m.
Our next step should be to find out how much farther Jenny's frog jumped than Christina's frog. To do this, we need to subtract the distance Christina's frog jumped from the distance Jenny's frog jumped. This should look like 2.34 (Jenny's frog) - 2.11 (Christina's frog), which should equal .23 m, so your answer should be D) 0.23 meters!