## Ma4/2.1 Number & Place Value

## Ma4/2.2 Addition & Subtraction

Ma4/2.2a add and subtract numbers with up to 4 digits using the formal written methods of columnar addition and subtraction where appropriate

Ma4/2.2b estimate and use inverse operations to check answers to a calculation

Ma4/2.2c solve addition and subtraction two-step problems in contexts, deciding which operations and methods to use and why.

Ma4/2.2b estimate and use inverse operations to check answers to a calculation

Ma4/2.2c solve addition and subtraction two-step problems in contexts, deciding which operations and methods to use and why.