What numbers should go on the bottom line? 3 6 9 15 8 2 10 12 11 8 19 27 19 10 29 39 ? ? ? ?
What single-digit number replaces the "?" below to go in the middle of the following set of numbers?
1, 8, 10, ?, 8, 3, 11
What numbers should replace the question marks?
21 441 9 7 49 13 19 361 10 5 25 7 14 196 16 9 ? ?
14 – 70 – 19
23 – 92 – 27
19 – 57 – 22
48 – ? – ?
In each line the numbers are arranged in accordance with some particular scheme. Write what two numbers should come next.
4, 7, 18, 21, 32 25, 36, 49, 64, 81 2160, 360, 72, 18, 6 3, 4, 12, 39, 103 750, 21, 264, 183, 210
Jagrati is playing with building blocks. She decides to stack the blocks so that each row has one less than the row below. There are a total of 55 blocks and Jagrati wants just one block on top. How many blocks should she put on the bottom row?
