Find 24 cards in a deck of playing cards.

Method 2: 3× (6+4-2) = 24;

Method 3: 3×6+2+4=24.

Problem solving process:

1, carefully observe the characteristics of the data and see the four numbers given here;

2. Starting from 24, which numbers are equal to 24 after addition, subtraction, multiplication and division.

24=3×8; 24=4×6; 24= 12×2;

24= 15+9; 24=27-3; 24=72÷3……

Try to sum the four numbers on the card face into 3 and 8, 4 and 6, and then multiply them to solve.

Extended data:

The game of "24" is a mathematical game, just like chess and Go, it is a kind of public entertainment. It is unknown when it began, but it is gradually accepted by more and more people with its unique mathematical charm and rich connotation.

Six basic solutions:

1, (a-b )× (c+d), such as (10-4 )× (2+2) = 24, etc.

2 、( a+b)÷c×d？ Such as (10+2) ÷ 2× 4 = 24, etc.

3 、( a-b÷c)×d？ Such as (3-2 ÷ 2) × 12 = 24, etc.

4 、( a+b-c)×d？ Such as (9+5-2) × 2 = 24, etc.

5、a×b+c-d？ For example,1/kloc-0 /× 3+1-10 = 24?

6 、( a-b)×c+d？ Such as (4- 1) × 6+6 = 24, etc.