Answer:
jabrill
Step-by-step explanation:
42 dived by 3 = 14
78 dived by 4=13
Thus,
Standard form means that a number is less than 10 and in the form 10^x.
Example: 4 x 10^1, 9.67 x 10^2 or 3 x 10^-5
28940.568
the diffrence is 780
subtract