A bakery made 36 pies last week. This week the same bakery made 27 pies. How many pies did the bakery make in the two weeks?

(a)  

Kate read 32 pages on Monday, 21 pages on Tuesday, and 15 pages on Wednesday. Then she read some more on Thursday. Altogether she read 88 pages. How many pages did she read on Thursday?

32 + 21 + 15 + (a)   = 88

Two groups of ducks swim in a large pond. One group has 23 ducks. The second group has 28 ducks. How many ducks are in the two groups?

(a)  

John sees a group of 47 butterflies, a group of 30 butterflies, a group of 55 butterflies, and a group of 26 butterflies. How many butterflies does he see?

(a)  

Laney added four numbers which have a total of 128. She spilled some juice over one number. What is that number?

22 + 43 + (a)   + 30 = 128

Jack went to a park. He saw 22 boys and 19 girls at the petting zoo. He saw 20 people fishing and 41 people watching a soccer game. How many people did Jack see at the park?

(a)  

There were 15 red marbles, 21 blue marbles, and 7 green marbles in a bag. Then Cameron put 18 black marbles into the bag. How many marbles are in the bag now?

(a)  

Charlie had 42 balloons. He bought 25 more balloons. Then Brett gave him 36 balloons. How many balloons does Charlie have now?

(a)  

Mr. Wolf has 22 red pens, 16 black pens, and 26 blue pens. How many pens does he have?

(a)