| read, write and interpret mathematical statements involving addition (+), subtraction (-) and equals (=) signs | solve problems with addition and subtraction using concrete objects and pictorial representations, including those involving numbers, quantities and measures | add and subtract numbers mentally, including a three-digit number and ones | add and subtract numbers with up to 4 digits using the formal written methods of columnar addition and subtraction where appropriate |
| represent and use number bonds and related subtraction facts within 20 | solve problems with addition and subtraction applying his/her increasing knowledge of mental and written methods | add and subtract numbers mentally, including a three-digit number and tens | estimate and use inverse operations to check answers to a calculation |
| add and subtract one-digit and two-digit numbers to 20, including zero | recall and use addition and subtraction facts to 20 fluently, and derive and use related facts up to 100 | add and subtract numbers mentally, including a three-digit number and hundreds | solve addition and subtraction two-step problems in contexts, deciding which operations and methods to use and why |
| solve one-step problems that involve addition and subtraction, using concrete objects and pictorial representations, and missing number problems such as 7 =? - 9 | add and subtract numbers using concrete objects, pictorial representations, and mentally, including a two-digit number and ones | add and subtract numbers with up to three digits, using formal written methods of columnar addition and subtraction | |
| add and subtract numbers using concrete objects, pictorial representations, and mentally, including a two-digit number and tens | estimate the answer to a calculation and use inverse operations to check answers | |
| add and subtract numbers using concrete objects, pictorial representations, and mentally, including two two-digit numbers | solve problems, including missing number problems, using number facts, place value, and more complex addition and subtraction | |
| add and subtract numbers using concrete objects, pictorial representations, and mentally, including adding three one-digit numbers | | |
| show that addition of two numbers can be done in any order (commutative) and subtraction of one number from another cannot | | |
| recognise and use the inverse relationship between addition and subtraction and use this to check calculations and solve missing number problems | | |
