Addition, Subtraction, and Multiplication

What is the answer to 4,007 - 2,874?

There are 12 boxes. Inside each box are 7 toys. How many toys are there in 12 boxes altogether?

What is the sum of 4,675 and 375?

If I took 5,867 photos last year and I took 2,046 this year? How many photos I have taken in 2 years?

What is the product of 8 and 6?

Mariam has 270 riyals. Her sister Lulu has 195. How much money do they have when put together?

There are 45 birds on a tree and 38 on another tree. 12 of them flew away. How many birds are still on both trees?

What is the difference between 620 and 359?

There are 8 tables at the party. Each table has 9 guests. What is the total number of all guests in all the tables?

Which multiplication sentence is correct?