If you round off the numbers 21 470, 45 782, 9 746, and 18 750 to the nearest
ten thousands, how will you express their sum in scientific notation?


Sagot :

Answer:

100 000 po

Step-by-step explanation:

21 470 will become 20 000

45 782 will become 50 000

9 746 will become 10 000

18 750 will become 20 000

so...

20 000

+50 000

+10 000

+20 000

_______

100 000

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