Answer:
Step-by-step explanation:
How to write numbers in standard form:
Write the first number 8.
Add a decimal point after it: 8.
Now count the number of digits after 8. There are 13 digits.
So, in standard form: 81 900 000 000 000 is 8.19 × 10¹³
458
A
10 because there there are 2 ten
1. = -560
2. = I181
3. = 752
4. = I311
5. = 572
6. = I831
7. = -3450
8. = 5980
9. = -I1121
10. = -I1431
