Timmy had 29 comics. After his brother gave him more, he had 38. How many did his brother give?

Together, Shadow and Comet weigh 41 lbs. Shadow weighs 11 lbs. How much does Comet weigh?

If you add 12 to a mystery number, the sum will be 37. What is the mystery number?

Nathan paid $9 for a robot and had $20 left over. How much money did Nathan have at first?

Aiden has 28 stickers, but needs a total of 35 stickers. How many more stickers does he need?

Some children went to the acting workshop. 11 girls and 10 boys. How many children were there?

Ashley had 29 magnets. After giving some away, she had 21 left. How many did she give away?

Jesselyn had 32 board games. She sold 20 of them at her yard sale. How many did she have left?

Some children went to the science workshop, 6 boys, 4 girls. How many children went?

I need to sell 34 books to win the grand prize. I've sold 8 so far. How many more must I sell?

Adriana has 29 robots to give away. 19 people have received a robot. How many robots are left?

My friend gave me 4 gumballs, now I have 20 gumballs. How many gumballs did I have at first?

Molly bought some balloons. 31 white balloons, 19 blue balloons. How many did Molly buy?

Alexa had 39 coins. After giving some to her friend, she had 14 left. How many did she give?

If you add 34 to a mystery number, the sum will be 98. What is the mystery number?

If you add 72 to a mystery number, the sum will be 138. What is the mystery number?

I wrote a secret number, subtracted 87 from it. The new number is 34. What is my secret number?

Diego had 44 coins. His brother gave him some, then he had 113. How many did his brother give?

Maddie read 23 pages. She had 70 pages left to read. How many pages are in her book?