That is standard form.
1234567890 x 9876543210 = 12193263111263526900
How do write 666 in standard form?
9,876,543,210 9876543210
That is the standard form!
It is already in standard form.
1234567890+9876543210=11,111,111,100
9876543210 - 9876543110 = 100
No, not especially. 9876543210 - 123456789 = 9753086421
Writing a number in standard form simply means to express the number in its 'normal' form. Therefore, the way you wrote the number is the standard form for your example. You could also write it with comma separators: 9,876,543,210
9876543210
9.63418329 × 1029
1,646,090,535
9876543210
1,646,090,535
9,876,543,210.123457
9876543210
9876741245 Use our brain :|