H07 · Optional home job
Three pretend kits cost $19 each plus one $2 fee. Budget: $60. Round up, then decide using the exact cost.
Use scrap paper or a private explanation. No purchase, household information or public performance.
Adult teaching after an own try
Answer
Upper rounded check 3 × $20 + $10 = $70. Exact $59 fits with $1 left.
Follow
An upper estimate above the budget did not prove the exact plan was over budget.