Find the missing number.

Lily wrote the following on a piece of paper 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 … 7 8 7 9. How many digits did she write altogether?

Today is Monday, the 9th of August. On which day of the week is the 9th of September?

Susan adds up 8 of the following numbers. Given that the result is 400, which number did she leave out?

Postman Pat is delivering a parcel from Point 𝐴 to Point 𝐵 , where his movements can only be in the directions → and ↑ . How many different paths can he take?

Fill in each circle with a number from 2, 5, 6 and 7, such that the sum of the 3 numbers along each line is 18. What is 𝑋?

There are 18 children in a party. Each girl gets 5 balloons, while each boy gets 3 balloons. If 72 balloons are given out in all, how many boys are there?

Wattaria is putting coins along the 3 sides of the triangle, such that there are 6 coins on each side of the triangle. How many coins are there in total? Use the figure provided to help you.