Singapore Primary Mathematics Answer Key for U.S. Edition and 3rd Edition Levels 4A-6B

This answer key can be used with both the U.S. edition and the 3rd edition of Primary Mathematics. Answers and unit, exercise, or page numbers that are different for the 3rd edition are given in brackets. However, only the U.S. convention is used for number words. Questions, units, or practices that are only found in the U.S. edition are marked with an asterisk.