There are 18 flowers in the vase. 5 of them were roses, 7 were daisies and the rest are sunflowers. How many sunflowers are there?

Heidi has 17 pens. She has 7 blue pens, some black pens and 6 red pens. How many black pens does Heidi have?

Henry gave 8 cookies to his brother, 5 cookies to his sister. Now, Henry has 4 cookies left. How many cookies did he have at first?

Mark had $15. He bought a loaf of bread for $4, and a bottle of juice for $3. How much does he have left?

Drew handpainted 20 tiles. He painted 8 white, 7 blue and the rest grey. How many tiles did he paint grey?

After giving away 7 apples and eating 6 apples. June has 5 apples left. How many apples did June have at first?

Isai bought 12 tomatoes,. She used 8 tomatoes. Her mother bought 9 tomatoes. How many tomatoes do they have in the end?

Ally had $17 in her coin bank. She spent $12 on a new book. When her mother got home, she gave Ally $10. How much does Ally have now?

Zac sold 7 shirts on Monday. He sold 6 shirts on Tuesday. If Zac had 19 shirts to sell. How many more shirts does he need to sell on Wednesday?

Tess used 5 blue balloons, 11 white balloons and some purple balloons in the party. If there were 20 balloons in all, how many purple balloons did she use?