百数图

The Hundred Numbers Chart is a 10x10 grid, with the numbers from 1 to 100 filled in each cell. This kind of chart can help preschool children and students understand the number sequence, comprehend number patterns, and perform addition and subtraction operations within 100.
The Hundred Numbers Chart will select a part of the 100 grids and give the number in one of the cells. Users need to fill in the correct numbers in the grids where the numbers are missing.
【Product Features】
>> Both the difficulty and the number of questions can be selected, suitable for kindergarten to primary school transition learning and after-school practice.
>> Randomly generate a part of the grids, and each generation is non-repeating. You can brush questions infinitely.
>> You can choose whether to turn on the wrong question reminder mode. Display the wrong questions and review them immediately. A coherent thinking is more beneficial for understanding.
>> Record the practice duration, automatically calculate the做题 speed, and encourage users to continuously speed up and make progress.
【Automatic Renewal Membership Instructions】
The Hundred Numbers Chart provides the following auto-renewing products
>> Subscription services: Monthly Membership, Quarterly Membership
>> Subscription periods: 1 month (continuous subscription product), 3 months (continuous subscription product)
>> Subscription prices: 8 yuan/month, 12 yuan/quarter
>> Payment: It will be charged to the iTunes account after the user confirms the purchase and makes the payment.
>> Users can manage their subscriptions and auto-updates through the user's account settings.
>> Cancel renewal: If you need to cancel the renewal, please manually turn off the auto-renewal function in the iTunes/Apple ID settings management 24 hours before the current subscription period expires.
>> Renewal: The user's own recharge account or the Apple iTunes account will be deducted within 24 hours before the expiration. After the deduction is successful, the subscription period will be extended by one subscription period.
【Lifetime Membership Instructions】
>> Service name: Lifetime Membership
>> Subscription period: Lifetime
>> Subscription price: 18 yuan/lifetime
>> If you subscribe to the Lifetime Premium Membership purchased from the App Store, it will be a one-time payment and will be effective permanently.