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Year 1 - Using number skills
Standard 1.NS.1.3 - Complete the addition sentence by filling in the missing number with sums up to 20.
Calculate using mental and written methods • Learners are able to: - mentally recall Â‘one moreÂ’ of a number within 20 - mentally recall Â‘one lessÂ’ of a number within 20 - use Â‘counting onÂ’ strategies to add two collections, starting with the larger number, e.g. 8 + 5 - add and subtract numbers involving up to 10 objects - use a range of strategies to mentally solve problems within 10 - solve one-step problems that involve addition and subtraction, including missing number problems, e.g. 7 + Â¨ = 9, using concrete objects and pictorial representations - use known facts to solve simple problems within 10, e.g. doubling and halving, number bonds - use known number facts when adding three single digit numbers and realise addition can be done in any order - understand and use the mathematical symbols for addition, subtraction and equals - understand and use the different mathematical terms for addition and subtraction, e.g. add, combine, find the difference