How can the 99-percent scale be rereaded efficiently?

Multiplication Table 99 Table is the basis for mathematics learning in primary schools, not only in everyday life when shopping is done, but also in the complex mathematical concepts of after learning division, fraction, algebra, etc. Many children feel bored and difficult when they first get in contact, but it is easy to recite the orals when they have the right methods.

1. Finding patterns and patterns

The multiplication table itself contains rich mathematical patterns that can significantly reduce the content that needs to be remembered:

Exchange: $A \times B = B \times A$。 For example, knowing $3 \times 4 = $12, knowing that you're going to find $4 \times 3 = 12$。 This reduces the number of notes by almost half.
Numbers 1 and 10: Any number multiplied by one or itself; Although the standard 99 table only goes to nine, it's understood to multiply by ten, which is adding zero to the back. It helps to create a sense of numbers.
Number 2: Multiply by two, it's equal to adding this number to itself.
Number 5: The end number must be 0 or 5 (5, 10, 15, 20...).
The magic of the number 9: The 10 digits plus one digits of the product of 9 is always equal to 9 (e.g. $9 \times 3 = $27, $2+7 = $9); $9 \times 7 = 63$，$6+3=9$）。 Moreover, the number of ten digits is just one less than the multiplier.

2. Use this tool for the online multiplication of tables

The traditional paper-based transit watch is only for us. Interactive multiplication list More interactive memory is provided:

Panorama mode: Click any grid to pop up the corresponding full multiplication equation to help create the visual memory of the "line position".
Random tests: Switch to test mode, the system will generate 1-9 at random. The multiplication topic, you can enter the answer directly. This will effectively test whether it really remembers, rather than simply following back.
Immediate feedback: The correct input will blink green, the error will blink red and the correct answer will be hinted. The dual feedback of hearing and vision strengthens the nervous connection.

3. Game and day-to-day applications

Don't limit the recite to the desk. The calculation of the total price at supermarket shopping and the calculation of the number of snacks per person can allow the child to perform simple multiplication calculations. It's done every day on this tool. 10 The “day challenge” of the topic is also a good way to play and learn with high accuracy.

You'll find that the complex mathematical issues that were once in the hands of the multiplication machine are solved.