Word problems-Addition 1-3 digit

Lucy went to the grocery store. She bought 12 packs of cookies and 16 packs of noodles. How many packs of groceries did she buy in all?

Roden went to a pet shop. He bought 15 gold fish, 7 blue fish and 3 packages of fish food. How many fish did he buy?

I read 21 pages of my English book yesterday in just 45 minutes. Today, I read 117 pages. What is the total number of pages that I read?

In a school, there are 542 girls and 387 boys. How many pupils are there in that school?

Linda has 34 candies. Chloe has 128. How many candies do they have together?