Column subtraction

Success criterea

3283

2062

4449

2072

1299

678

6016

2837

9894

2841

4945

844

8721

5319

3714

2891

5869

3178

6235

5465

4512

3670

1489

706

6094

2305

4976

9000

4687

3422

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

Do your working out below.

Challenge

The local library owns 5324 books. 1279 have currently been taken home by readers. How many are left in the library at the moment?