Seudónimo Seudónimo
  • 23-02-2016
  • Mathematics
contestada

Sue want to use mental math 7x53

Respuesta :

Аноним Аноним
  • 23-02-2016
Break the 53 into 10 10 10 10 and 10

Then 10x7=70

10x7=70 

10x7=70

10x7=70 

10x7=70       
Answer Link
Аноним Аноним
  • 23-02-2016
53 -3 = 50
7 times 50 = 350
7 times 3 = 21 
350 + 21 = 371.
Answer Link

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