1. Five thousand seven is written in figures as 5070. 2. The answer obtained after adding the numbers is called the sum. 3. The predecessor of 7890 is 7889.
Answer (1)
The student statement involves three different assertions related to mathematics. Let's examine each one:
Five thousand seven is written in figures as 5070.
This statement is incorrect. The number 'five thousand seven' is written in figures as $5007 , not $5070 . The digits '5070' stand for 'five thousand seventy'. Understanding how to correctly express numbers in both words and figures is crucial in math to avoid confusion.
The answer obtained after adding the numbers is called the sum.
This statement is correct. In mathematics, when you add two or more numbers together, the result is known as the 'sum'. For example, the sum of 3 and 4 is 7.
The predecessor of 7890 is 7889.
This statement is correct. The predecessor of a number is the number that comes immediately before it, which is simply one less than the given number. Therefore, for 7890, its predecessor is indeed 7889.
These concepts are fundamentals of basic arithmetic and understanding numbers, which are crucial for performing more complex mathematical operations.
