In each of the following pairs of numbers, state which whole number is on the left of the other number on the number line. Also write them with the appropriate sign (greater than, less than) between them. (a) 530, 503 (b) 370,307 (c) 98765, 56789 (d) 9830415,10023001
A number line is a visual representation of numbers on a straight line. This line is used to compare numbers that are placed at equal intervals on an infinite line that extends on both sides, horizontally.
Answer: 503 left of 530, 530 > 503 ; 307 left of 370, 370>307 ; 56789 left of 98765, 98765>56789 ; 9830415 left of 10023001, 9830415 < 10023001
A smaller number always lies on the left of the larger number on a number line
Explanation:
To compare 2 numbers count their digits, the number with higher number of digits is the higher number.
If both the digits are same, then check each digit from left to right, the number with greater face value (digit wise) is the the greater number.

530 is bigger than 503, so 503 is left of 530.

370 is bigger than 307, so 307 is left of 370.

98765 is bigger than 56789, so 56789 is left of 98765.

10023001 is bigger than 9830415, so 9830415 is left of 10023001.