Hank is determining the difference in temperature from this morning’s temperature of -3°F to this afternoon’s temperature of 49°F and found the difference to be 46°F. Find Hank’s mistake and correct it.

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870

i believe b is the answer