See free Year 1 counting to 100 worked examples with clear strategies and answers, aligned to the England primary curriculum.
Try each question first, then compare the strategy and answer. The aim is to understand the method, not just copy the final result.
How to think about it: Read the digits and place-value clues carefully. Work one place at a time, then use the number pattern or inverse fact to check the result. Say them aloud first.
Answer: 16, 17, 18, 19
How to think about it: Read the digits and place-value clues carefully. Work one place at a time, then use the number pattern or inverse fact to check the result. Say the number aloud if that makes the structure clearer.
Answer: 29, 31
How to think about it: Read the digits and place-value clues carefully. Work one place at a time, then use the number pattern or inverse fact to check the result. Say the number aloud if that makes the structure clearer.
Answer: 41, 40
How to think about it: Read the digits and place-value clues carefully. Work one place at a time, then use the number pattern or inverse fact to check the result. Say the number aloud if that makes the structure clearer.
Answer: 57, 58, 59, 60, 61