Take three hands-up estimates, not open call-outs. Do not add it yet — hold the estimate against the real total after the model step. Give five seconds of quiet think-time first.

Listen for pupils rounding to tidy numbers (about 50c + about €1 + about €1.50) — revoice one rounding estimate aloud as the sensible way to judge "over or under €3".

Work each one live on the board — do not read the worked answers aloud before pupils have watched the columns add. Keep euro under euro, cent under cent every time.

• €1.35 + €0.85 — this is the one to linger on. Ask "how many whole euro are hiding in 120 cent?" before you split it, then show the 100c going up as €1 and the 20c staying below.
• €2.99 + €1.50 — 99 + 50 = 149c, one euro carried, 49c left. The near-€3 item catches people out.

Talk this one through together — pupils take turns at the board and the class agrees or corrects out loud.

For each basket, one pupil lays the coins for the first price, another lays the second, then the class counts the whole tray. Say each running total aloud as coins go in.

• €0.95 + €1.05 — 95c + 5c makes a euro on its own; ask the class to spot that before counting on.
• €0.85 + €0.55 + €0.60 — the cent total is 200, which is exactly €2. Let the class notice the tidy trade.

This is the practice round — pupils take turns at the board, check each answer, and the class confirms before moving on. Keep the board work brisk rather than over-explaining.

• €0.95 + €1.05 + €0.50 — the first two make €2 exactly, then +50c.
• €1.99 + €0.75 + €2.20 + €0.30 — the key one basket: the cent are 99 + 75 + 20 + 30 = 224, so €2 carries and 24c is left. Have the class predict how many whole euro are hiding in the cent before the Check.