## Task 4

Check the following statements:

a) The product of the smallest two-digit number and the smallest three-digit number is equal to the smallest four-digit number.

a) The product of the largest two-digit number and the largest three-digit number is equal to the largest four-digit number.
a) The smallest 2-digit number is 10, the smallest 3-digit number is 100, the smallest 4-digit number is 1000. $10 \cdot 100=1000$ is a true statement.

a) The largest 2-digit number is 99, the largest 3-digit number is 999, the largest 4-digit number is 9999.

$99 \cdot 999=9999$ is a false statement. It is also possible to hint at the last digit of the product.