Question

Lindsay and Lorraine are trying to match the jump rope world record. Together, they need to jump 48 times in a row. Lindsay has gotten 14 jumps in a row, and Lorraine has gotten 13. How many more jumps (j) do they need to match the record? Show your work!

Answer 1

For this case what we must do first is to obtain the total amount that both have accumulated.
 We have then:
 Lindsay has gotten 14 jumps in a row and Lorraine has gotten 13:
 14 + 13 = 27
 Then, we must find the remaining amount:
 j = 48-27
 j = 21
 Answer:
 they need 21 more jumps to match the record