Take three hands-up answers, not open call-outs. Give ten seconds of quiet think-time first.

Listen for pupils who add roughly ("nearly €6, so no") as well as those who add exactly — both are useful. All three comes to €5.90, so it does not fit; that is the point of the question. Watch for the pair that lands on €5 exactly (roll and drink) — it fits the budget but leaves nothing over, which is worth arguing about. Don't confirm any total yet; that comes when the budget interactive is on the board.

Work the three side by side, one at a time.

• One item — point at the bar half-empty and the €2.80 left; ask what else could still fit.
• Two items that fit — get the class to add €1.50 and €0.90 in their heads before you read the total off the bar.
• Over the cap — pause before you name the total: "will these two fit in €5?" Let them predict, then show the bar overflow.

The point pupils should leave with: add first, check against the cap, then decide.

Talk this one through together — reveal one numbered task at a time so the class always knows which step is current. Pupils take turns at the board and the class agrees or corrects out loud.

Each item starts at zero. Pupils step an item up to its price with the +10c and +50c buttons, and step it back down to drop it from the list. Before the running total is read, ask the class to add the prices and predict the amount left.

Task 4 is the one that builds: drink + fruit = €2.40, adding a snack bar (€2.20) gives €4.60, which stays under €5. If the class is confident, contrast it with the lunch roll (€3.50) instead — that pushes drink + fruit + roll to €5.90 and tips over. Watch for pupils who forget the cents when adding €1.50 and €0.90.

Close with the best-value idea: ask which pair got closest to €5 without going over, and name that as the best value, not the list with the fewest items.

This is the practice round. Pupils take turns at the board, check each answer, and the class confirms before moving on. Keep it brisk.

Round 1 is two friends and a €10 purse, so it is the same idea as the shopping list but shared between two people. Round 2 adds a third friend and a €15 purse.

Rounds 3 and 4 are the step up: the money left over is the answer. In round 3 the three friends spend €12.40 of €15, so the change is €15 − €12.40 = €2.60. In round 4 they want €3.60 change from €15, so the three spends must come to €15 − €3.60 = €11.40. Ask for the subtraction out loud before anyone touches the board.