Adding and Subtracting 3-digit and 1-digit Numbers Mentally Worksheet

A worksheet that provides a variety of questions linked to being able to add and subtract 1-digit numbers from 3-digit numbers where there is no exchanging/ carrying so calculations can be done mentally.

Included as part of the worksheet are 8 different questions that provide variation to check understanding through the use of different models, representations and question styles. This includes trying to get pupils to identify links and patterns to support their answers.

There are also 4 challenge questions provided for those that finish to then push their understanding through reasoning and problem solving.

Answers are also included for all questions.