Adding puts two groups together. 3 + 2 means 3 and 2 more. Start at 3 and count on 2 more: 4, 5. So 3 + 2 = 5.
Worked example
3 + 2 = ?
Answer:5
Start at 3 and count on 2 more: 4, 5. So 3 + 2 = 5.
For grown-ups: Add/subtract as putting together and taking apart, with objects (within 10). Below: three problems to try with the worked answers, and a free printable sheet. Children can practise the same skill as a game, with no sign-up and no ads.
CCSS K.OA.A.1–2
What this practises, for teachers
Practices add/subtract as putting together and taking apart, with objects (within 10) (K.OA.A.1–2). A printable sheet with its answer key, worked answers on the page, no accounts.