Simple ways to play cards together 24

A simple way to collect playing cards 24 is as follows:

1, the most common algorithms are 3*8, 4*6, 2* 12, so the above three algorithms should be considered first. There is usually one factor, and the other three numbers are used to divide another factor.

2. multiply first and then add. Common ones are 2*7+ 10, 3*5+9, 2*9+6, 3*7+3. 3. multiply first and then subtract. Common ones are 3*9-3, 4*7-4 and 5*6-6. The difficulty of this type is that subtraction is obtained by adding two numbers, such as 2, 5, 7 and 9.

4. Exclusion method. Sometimes you can use three numbers to calculate 24, and use an extra number to remove the extra number. For example, 3, 5, 9, 10, 3*5+9=24, and one more 10 can make 10-5=5 and eliminate 10. Use the distribution law of multiplication to eliminate elements, for example, 2, 5, 8, 8, (5-2)*8=24, and if there is one more 8, the formula can be changed to 5*8-2*8, and the extra 8 can be eliminated.

5. Know the law and break the law. For example, 4,4,4 * 4 means four fours, plus two fours, it is six fours. For another example, 2, 7, 8, 9, 9+7 are two eights, and then multiplied by 2, it becomes four eights, and one minus eight equals three eights.

6. Heaven. Multiply a number by a large number and then divide it by a number to get 24, such as 10,10,4,4.

7, into the ground. First count a number as a component or decimal, and finally multiply it by a number to get 24, such as 3, 3, 7, 7.

8. Divide into multiplication. Dividing a number by a fraction is equivalent to multiplying a number and finally getting 24. Such as 3, 3, 8, 8.