Write the Missing Numbers in the 100 Square

This activity is about finding missing numbers on a 100 square.

Here is a partly-completed 100 square.

Look carefully for patterns in the numbers.

Find A.

Count across to it in ones. 

Count down to it in tens.

Can you see that A must be 53?

Find B.

Count down to it in ones.

Can you see that B must be 70?

Find C.

Count across to it in ones.

Count down to it in tens.

Can you see that C must be 95?

Example

Put the numbers in the correct boxes:

8,  95,  4,  20,  53

A and B are single-digit numbers.

C is in the tens column.

D is in the 50s row and in the column that ends in 3.

E is in the 90s row and in the column that ends in 5.

This helps us to get the correct match:

Let's have a go at some questions now.