IMC Key Stage 2 · 5. Word problems: ages, money and averages
Find what stays the same, turn averages into totals, and use bar models and the assumption method to solve age, money and average problems.
IMC Key Stage 2 (EMIC) – Selected topics
Use the fixed age gap and total-age growth to solve age problems.
Switch between averages and totals to find missing, added or replaced numbers.
Combine groups with different averages correctly.
Solve ticket, coin and price problems with the assumption method.
Check every answer against all the facts in the problem.