Seudónimo Seudónimo
  • 25-03-2021
  • Mathematics
contestada

Add.

58+28













































Item 19
Which number is prime?

4

9

21

23


1016

78

716

18

Respuesta :

indianauwu
indianauwu indianauwu
  • 25-03-2021
58+28=86.
8+8=16
5+2=7
take the 1 from 16 and add it onto the 7
1+7=8: thats the tens place.
Now we only have 6. So thats the ones place. Combine the two numbers and you get 86.
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