Order of Operations Basic

Order of Operations Basic practice with teacher guidance, common slips, and next-step routes.

Surface

This skill appears in Operator-order maximum choice, Plus-minus target minus-count choice.

Task formats

Operator-order maximum choice

Operator-order maximum choice asks the player to choose the permitted ordered operation tuple that gives the greatest final value when applied sequentially to the declared start value.

ActionChoose the permitted ordered operation tuple that gives the greatest final value when applied sequentially to the declared start value.

CheckChoose the answer that matches the visible prompt.

UseSupport / Core / Transfer

ShowsCheck only

PresentationCompact / Standard / Extended

Practice focus

Balanced growth

Plus-minus target minus-count choice

Plus-minus target minus-count choice asks the player to choose how many mutable binary plus signs must be changed to minus signs, minimizing that count while making the fixed-order exact expression satisfy the declared target.

ActionChoose how many mutable binary plus signs must be changed to minus signs, minimizing that count while making the fixed-order exact expression satisfy the declared target.

CheckChoose the answer that matches the visible prompt.

UseSupport / Core / Transfer

ShowsCheck only

PresentationCompact / Standard / Extended

Practice focus

Balanced growth

Selection

Fresh independent work can move toward Core, Transfer, or Challenge routes; help use or confusion keeps support visible.

Help

Hints keep attention on the visible structure; reveals show the path without counting as independent evidence.

Presentation

Presentation can reduce reading and interaction load without changing the selected skill. Practice focus can bias compatible work without breaking prerequisites or story fit.

Story fit

episodes where symbols, unknowns, operators, or inequalities determine an exact algebraic state