Math Word Problem Review (compare, change unknown)

Sam has 14 balloons. His sister Colleen has 57 balloons. How many more balloons does Colleen have than Sam?

Morgan has 23 toy cars. He has 58 toy trucks. How many more cars than trucks does Morgan have?

Danika and Raymond are both reading books. Danika has read 68 pages and Raymond has read 87 pages. How many more pages has Raymond read?

Erick got 26 pieces of candy on Halloween. Dasia got 42 pieces of candy. How many fewer pieces of candy did Erick get than Dasia?

Jonathan has 29 shells. Jazleen gives him some more shells. Now Jonathan has 51 shells. How many shells did Jazleen give him?

Annabelle had 37 dimes. Andrea gave her some more. Now Annabelle has 75 dimes. How many did Andrea give her?