Two-story pagoda, 12 monk, 24 bronze bells and 36 lamps.

Three-story pagoda with 24 monks, 48 bronze bells and 72 lamps.

Four-story pagoda, 48 monks, 96 bronze bells, 144 lamps.

The five-story pagoda has 96 monks, 192 bronze bells and 288 lamps.

Six-story pagoda with 192 monks, 384 bronze bells and 576 lamps.

There are 384 monks, 768 bronze bells and 1 152 lamps in the pagoda on the 7th floor.

There are 768 monks in the 8-story pagoda, 1536 bronze bells and 2304 lamps.

Nine-story pagoda with 1536 monks, 3072 bronze bells and 4608 lamps.

Calculation method using multiplication:

Extended data

Fast calculation method of mathematical multiplication

The ten digits of 1. are the product of two digits of 1.

The digits of the multiplier are added to the multiplicand to get the first product, and the digits of the multiplier are multiplied by the digits of the multiplicand to get the last product, which is full of ten and the first one.

15× 17= 255

15 + 7 = 22

5 × 7 = 35

Namely: 220+35=255

Second, the unit bit is the product of two digits of 1

Methods: Multiply ten digits to get the number as the front product, add ten digits and ten digits, then write the number, and finally add 1. Example 1:

5 1 × 3 1 = 158 1

50 × 30 = 1500

50 + 30 = 80

1500 + 80 = 1580

Because 1 × 1 = 1, the last digit must be 1, and the result is followed by 1.

That is 1580+ 1 =? 158 1。

The number "0" is used as a mnemonic when it is not proficient, but it can be used after it is proficient.