The lab door is sealed. A basic arithmetic lock blocks the entrance. Solve the expression using BODMAS.
EVALUATE:
8 + 2 × 5
Brackets change everything. Pick the correct answer. A wrong choice costs a life and a new question is generated.
WHICH VALUE IS CORRECT?
BODMAS: Brackets are solved first, before any multiplication or addition outside them.
The relay is missing working-out steps. Fill in all three blanks correctly to unlock. Wrong answers lose a life and generate a new expression.
COMPLETE THE WORKING OUT:
Indices (powers) come before multiplication. Calculate the squared number first, then multiply.
Drag the calculation steps into the correct BODMAS order. Wrong order costs a life and the steps are reshuffled.
ORDER THE STEPS FOR:
BODMAS order: Brackets → Indices → Multiply/Divide → Add/Subtract. Start from the innermost operation.
A student's working has been corrupted. One line is wrong. Identify it — wrong answers lose a life and a new example loads.
FIND THE FIRST INCORRECT LINE:
Check each line against BODMAS rules. Look for a place where multiplication or addition happened in the wrong order.
Is the student's statement true or false? Wrong answers lose a life and a new statement is generated.
TRUE OR FALSE?
Evaluate the left side using BODMAS and see if it really equals the value claimed.
Match each expression to its correct value. All three must be right. Errors lose a life and generate a new set.
MATCH EACH EXPRESSION TO ITS VALUE:
Calculate each expression fully before matching. Don't guess — evaluate carefully using BODMAS.
Choose which version has brackets placed correctly to produce the target value. Wrong = lose a life + new puzzle.
WHICH VERSION EQUALS THE TARGET?
Evaluate each option carefully. Brackets force operations to happen earlier — check which placement hits the target.
A number is missing from the equation. Work backwards using BODMAS to find it. Wrong answers lose a life and change the equation.
FIND THE MISSING NUMBER (□):
Calculate all the parts you know first (using BODMAS), then figure out what □ must be.
⚠ FINAL BARRIER. The master lock requires full mastery of BODMAS. Wrong answers lose a life — and a harder expression replaces it.
EVALUATE:
Take it step by step: brackets → indices → × and ÷ left to right → + and − left to right.
💀
SYSTEM FAILURE
// You ran out of lives — the Order Lab remains locked //
Study your BODMAS and try again!
🔓
SYSTEMS RESTORED
// All 10 locks defeated — Order Lab secure //