The product of two digits multiplied by two digits may be three digits or four digits. For example, the minimum two digits are multiplied by the minimum two digits, that is, 10 times 10 equals 100, which is a three-digit number; The largest two-digit number multiplied by the largest two-digit number, that is, 99 times 99 equals 98,065,438+0, is a four-digit number, and the product of all two-digit numbers multiplied by two-digit numbers is between 65,438+000 and 98,065,438+0, so the product of their multiplication may be three-digit number and four-digit number.

The meaning of two digits multiplied by two digits

Multiplication is a shortcut to add up the same numbers. The result of its operation is called product, and x is the multiplication sign. From the philosophical point of view, multiplication is the result of qualitative change caused by additive quantity. Integers include negative numbers, and the multiplication of rational numbers and real numbers is defined by this basic definition.

The calculation method of multiplying a two-digit number by a two-digit number is as follows: first, multiply the multiplier of 1 by the number in the second multiplier, and the last digit of the number is aligned with the number in the second multiplier; Multiply the multiplier of 1 by one tenth of the second multiplier. The last bit of the multiplier is aligned with the tenth bit, and then the two products are added.

Multiplier is the multiplication rule of two digits. First multiply the multiplicand by the four digits of the multiplier, then multiply the multiplicand by the ten digits of the multiplier, and then add the two multiplied numbers.