To find out how much larger the first number is than the second in each pair, you need to subtract the second number from the first number. Here are the calculations for each pair:
a. 154 - 27 = 127
The first number, 154, is 127 larger than the second number, 27.
b. 25 - 12 = 13
The first number, 25, is 13 larger than the second number, 12.
c. 135 - 127 = 8
The first number, 135, is 8 larger than the second number, 127.
d. 46 - 24 = 22
The first number, 46, is 22 larger than the second number, 24.
By subtracting the smaller number from the larger number in each pair, you can determine the difference between the two numbers.