What rewards would you give your child to complete mathletics?

[pomegranate1975]

My son has been lazy after school and i want to keep him busy studying. He says he has no homework, so i tell him to do mathletics, but he is not motivated.
There is 15 topics in total for year 8. Each topic has about 100 questions.
I told him to complete 3 topics and get over 80% for $10, which he did but said after its too little and not worth it.

How much would you give you year 8 to learn and complete a topic? e.g get over 50% $, or over 80%, over over 90%?
How would you suggest i get him to learn and complete it?

Actually there would bw no financial reward from me!!

Zombie thread

When my eldest DS was doing his GCSEs, we were very concerned at his lack of study, and worried endlessly about how we were going to motivate him to achieve his potential. This situation was exacerbated by the fact that we had already made a decision to move abroad after he had done his exams, a decision he was far from happy about. In desperation, we 'bribed' him with a cash incentive linked to results in the exams - so much for achieving 5 grade A-Cs, and then a bonus for each further GCSE. He was capable of achieving straight A's across the board, but his lack of application and general teenage difficulties meant he was not looking at all likely to get that. The bribe, imho, made not a jot of difference in the end... he passed all but one of the GCSE's with a mix of As and Bs, which he was himself disappointed in.
We did move abroad, and when the time came to sit AS levels and then A levels, the incentive was one we didn't have to worry about. He was desperate to come back to the UK to study at University, and chose a Uni and course which demanded high grades.... Finally, he twigged himself that there was something worth working for, and to his credit, he achieved A*,A,A at A level and got his wish.
So, I would not recommend cash incentives for study. Maybe a bit of disappointment is better at teaching the hard lesson that nothing comes easy in life.