TY  - BOOK
AU  - Clemson,Wendy
AU  - Clemson,David
TI  - Subtraction
SN  - 9781405375764
U1  - 513.212 
PY  - 2011///
CY  - London
PB  - Dorling Kindersley
KW  - Subtraction
KW  - Mathematics recreations
KW  - Toy and movable books
N1  - Primary; 500-599
ER  -