Current location - Loan Platform Complete Network - Big data management - Say the song. How do you make a pagoda with three monks on the first floor, six tongling and nine lamps, and a pagoda with six tongling on the second floor, all the way up to the ninth floor? Second g
Say the song. How do you make a pagoda with three monks on the first floor, six tongling and nine lamps, and a pagoda with six tongling on the second floor, all the way up to the ninth floor? Second g
Say the song. How do you make a pagoda with three monks on the first floor, six tongling and nine lamps, and a pagoda with six tongling on the second floor, all the way up to the ninth floor? Second grade questions

1 layer pagoda 6 monks, 12 copper bells 18 lamps.

The 2nd floor pagoda has 12 monks, 24 bells and 36 lamps.

The 3rd floor pagoda has 24 monks, 48 bells and 72 lamps.

4-story pagoda with 48 monks, 96 bells and 144 lamps.

The 5th floor pagoda has 96 monks, 192 bells and 288 lamps.

The 6th floor pagoda has 192 monks, 384 bells and 576 lamps.

The 7th floor pagoda has 384 monks, 768 bells and 1152 lamps.

The 8th floor pagoda has 768 monks and 1,536 bells and 2,304 lamps.

The 9-story pagoda has 1536 monks, 3072 bells and 4608 lamps.

Using the calculation of multiplication:

Expanded Information

Mathematical multiplication of the speedy method

I. Multiplication of two-digit numbers whose tens digit is one

The digits of the multiplier and the multiplied number are added together to obtain the first product, and the digits of the multiplier are multiplied by the digit of the multiplied number to obtain the last product, and the digits of the multiplier and the digit of the multiplied number are multiplied by the latter product. Full ten before one.

15 × 17 = 255

15 + 7 = 22

5 × 7 = 35

That is: 220 + 35 = 255

Two, the first digit is 1 two-digit multiplication

Methods: multiply the tenth digit with the tenth digit, and the result is the former product, the tenth digit with the tenth digit, and the number of digits to be written next, full of ten into a one, and then add the last 1. Example 1:

51 × 31 = 1581

50 × 30 = 1500

50 + 30 = 80

1500 + 80 = 1580

Because 1 × 1 = 1, the last digit must be 1, and 1 will be added at the end of the number obtained

That is, 1580 + 1 = ?1581.

The number "1581" is the first product. p>

The number "0" is used as a mnemonic when you are unskilled, but can be left out when you are skilled.