Word problems.\math

We have a pot. We put two cups to double them. How many cups do we have now?

I have 1 quiz. I created 1 more. How many quizs do I have now?

50+50=?

200+200=?

Mark has 13℅ on his tablet. He then charges it and 4℅ is added. How much does it have now?

Jack has 17 quizs. He then created 23 more. How many does he have now?

I had 4 bikes. I selled 3 more to someone. How many more do I have now?

We had 7 bird books. We lent 7 more to another class. How many bird books do we have now?

Back to word problems. We have 5 toys. Three of them were stolen. How many toys do we have now?

It has now turned into math (hard math) until Q8. 2+59+12=?