Rick has 40 hats. Amy has 20 hats. How many hats must Rick give to Amy so that the number of hats Rick equals that of Amy’s ?

The road in front of my school is planted with 9 trees. The trees are 27m away from each other, how far is the nineth tree away from the first one ?

Lan has 39 dresses. Hoa has 13 dresses. How many dresses must Lan give to Hoa so that the number of dresses Lan equals that of Hoa’s ?

The road in front of my school is planted with 9 trees. The trees are 38m away from each other, how far is the nineth tree away from the first one ?

The distance between the first  and seventh building along a stretch of road is 150m . How far are the buildings away from each other along that stretch of road if they are placed at regular intervals ?

Martin has 46 shoes. Max has 22 shoes. How many shoes must Martin give to Max so that the number of shoes Martin equals that of Max’s ?

Jonathan has 16 erasers. Maria has 64 erasers. How many erasers must Maria give to Jonathan so that the number of erasers Maria equals that of Jonathan’s ?

Robert has 90 trees. Simon has 64 trees. How many trees must Robert give to Simon so that the number of trees Robert equals that of Simon’s ?

Karen has 55 candies. Lily has 23 candies. How many candies must Karen give to Lily so that the number of candies Karen equals that of Lily’s ?

Sarah has 60 magazines. Joe has 42 magazines. How many magazines must Sarah give to Joe so that the number of magazines Sarah equals that of Joe’s ?

Jane has 80 books. Laura has 60 books. How many books must Jane give to Laura so that the number of books Jane equals that of Laura’s ?

Scott has 42 necklaces. Philip has 28 necklaces. How many necklaces must Scott give to Philip so that the number of necklaces Scott equals that of Philip’s ?

Mark has 26 flowers. Oliver has 12 flowers. How many flowers must Mark give to Oliver so that the number of flowers Mark equals that of Oliver’s ?

Paul has 80 balloons. Peter has 50 balloons. How many balloons must Paul give to Peter so that the number of balloons Paul equals that of Peter’s ?

Lori has 79 rulers. Mary has 13 rulers. How many rulers does Lori give to Mary so that the number of rulers Lori equals that of Mary’s ?