locomoto
locomoto locomoto
  • 10-04-2018
  • Mathematics
contestada

plz help plz thanks so much this is for my sister plz help

plz help plz thanks so much this is for my sister plz help class=

Respuesta :

Imhers159
Imhers159 Imhers159
  • 10-04-2018
6 + 21 = 27 (Add six ones)
60 + 21 = 81 (Add six tens)

I hope this helps:) 
I'm sorry if it doesn't:(
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helpmepls10
helpmepls10 helpmepls10
  • 10-04-2018
1. 1+1+1+1+1+1+21
2.10+10+10+10+10+10+21
good luck
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