Multiplication is a basic mathematical operation, and the result is the sum of repeated addition of a number. Take 450× 1=450 as an example to analyze this multiplication formula. In this multiplication formula, 450 is the multiplicand and 1 is the multiplier. According to the definition of multiplication, 1 multiplied by any number is equal to the original number, so the result of multiplying 450 by 1 is 450 itself. This multiplication formula actually means that 450 is added by 1 repetition, and the total is still 450.
As can be seen from the form of the formula, multiplication is a concise representation method, which can avoid lengthy addition operation. In real life, multiplication is widely used in various calculations and problem solving. For example, the total price of goods is calculated in business, the average value of measured data is calculated in scientific research, and compound interest is calculated in the financial field.
Multiplication also has some important properties and laws, such as multiplication commutative law, multiplication associative law, multiplication distributive law and so on. These properties and laws are widely used in mathematics, and they are also an important basis for mathematical research.
Analysis of multiplication formula;
1, the position of two numbers in the multiplication formula: in the multiplication formula, the position of two factors is particular. Generally speaking, the first factor represents the number to be operated, and the second factor represents the number to be operated. For example, when 30 is multiplied by 4, it can be understood that the number 30 is added four times repeatedly, and the result is 120.
2. Calculation process of multiplication formula: The calculation process of multiplication formula is actually the sum obtained by repeatedly adding a number. For example, if the formula 30 is multiplied by 4, you can imagine 30 as a pile of apples and 4 as the number of times to add this pile of apples repeatedly. The final result is the total number of apples added four times.
3. Carry problem of multiplication formula: In multiplication formula, carry problem is sometimes involved. For example, Equation 23 times 12, 23 times 10, 230, and 23 times 2, 46. The last two results add up to get 276. This is the carry problem in the multiplication formula.
4. Vertical calculation of multiplication formula: In multiplication formula, vertical calculation method is sometimes used. The vertical calculation method is to multiply two factors respectively, and then add their products to get the final result. For example, in the vertical calculation of equation 30 multiplied by 4, 3 and 4 are multiplied to get 12 and 120 respectively, and then the two products are added to get 132.
5. Cardinality and exponent of multiplication formula: In multiplication formula, each number has its specific cardinality and exponent. For example, if the formula 450 is multiplied by 1, the cardinality of 450 is 4, 5 and 0, and the exponents are 2 and 1 respectively.