Gr 4 3rd Summative Math 4 Problem Solving

75 people are in line to ride a roller coaster. 15 got out of the line then 17 joined the line. How many people are still in line for the roller coaster?

Pete has 22 green marbles and 14 blue marbles. Ron has 17 marbles. How many more marbles does Pete have than Ron?

Daniel colored 14 pictures and gave 9 to his mother on her birthday. Then he colored another 12 pictures. How many does Daniel have now?

Clair bought 12 pieces of bubblegum. Her friend gave her 9 more. She ate 6 of them. How many pieces of bubblegum does Clair have left?

There were 17 books on one shelf and 15 books on another shelf. 9 books were taken by some children to read. How many books were left on both shelves?

There are 10 people in a classroom and 5 people come to join them. 7 people then go out to work in a group. How many people are left in the room?

There are 9 footballs in one bag and 14 footballs in another bag. 18 balls are used for practice. How many balls are not used?

20 children were playing in a tree house. 10 children went out to play on the field. 4 more children went to play in the tree house. How many children are playing in the tree house now?

Trina had 50 water balloons. 30 were red and the others were blue. She threw 9 of the blue ones. How many blue water balloons are left?

Dad caught 22 fish in the morning. He threw 5 back because they were too small. He caught 12 more in the afternoon. How many fish did dad have then?