![]() ![]() In multiples of 9 we count nines, that is, groups of 9. Multiples of 8 are even numbers, meaning their unity digit belongs to the group: 0, 2, 4, 6, 8. Lift 7 fingers and count backward like this: 8 for the first finger, 6 for the second finger, 4 for the third finger, 2 for the fourth finger, 0 for the fifth finger, 8 for the sixth finger, and 6 for the seventh finger. Therefore, 5 is the tens digit in the product. Since it is greater than 5, we will subtract 2 and get: If we reached 0, we will count again from 8.įor example, we will calculate the exercise 8×7. To calculate the unity digit, raise your fingers according to the number shown in the exercise and count back even numbers from 8 to 0 as the number of raised fingers. The number we get is the tens digit in the product. If it is greater than 5 (between 6 and 10), we subtract 2. If it is less than or equal to 5 (between 1 and 5), we subtract 1. ![]() To calculate an exercise involving multiplication by 8, we will look at the number that appears in the exercise. How do you easily calculate multiples of 8? In multiples of 8 we count eights, that is, groups of 8. Multiples of 6 are even numbers, meaning their unity digit belongs to the group: 0, 2, 4, 6, 8. ![]() When there is an exercise that involves multiplying by 6, raise your fingers according to the number that appears in the exercise and say the multiples in order, a multiple for each finger.įor example, to calculate 5×6, lift 5 fingers and count as follows: 6 for the first finger, 12 for the second finger, 18 for the third finger, 24 for the fourth finger, and 30 for the fifth finger. Start from the number 6 and add 6 each time. Method 2: It is possible to remember multiples of 6 in order. Method 1: When you want to calculate an exercise with a number that is multiple of 6, you can calculate the same exercise, but with 5 instead of 6 and add the number that appears in the exercise. How do you easily calculate multiples of 6? In multiples of 6 we count sixes, that is, groups of 6. ![]()
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