Addition and subtraction strategies (age 7+)

“If your child works out '67 + 24' by splitting it into '60 + 20' and '7 + 4', can they explain to you in words *why* that approach gives the right answer?”

0 / 3 mastered

• ⬜Explain why adding tens and ones separately gives the correct total
• ⬜Describe why a compensation strategy works (e.g. 'I added 1 too many, so I subtract 1')
• ⬜Use place-value language to justify a written method step by step