Year 3 - Number
Standard 3.NS.1.2 - Simplify both sides of the equation and find the missing number that makes the equation true.
Included Skills: Mixed Equations
Number - addition and subtraction • Pupils should be taught to: - add and subtract numbers mentally, including: • a three-digit number and ones • a three-digit number and tens • a three-digit number and hundreds - add and subtract numbers with up to three digits, using formal written methods of columnar addition and subtraction - estimate the answer to a calculation and use inverse operations to check answers - solve problems, including missing number problems, using number facts, place value, and more complex addition and subtraction.