27-08-2016
Mathematics

contestada

use mental math to find the sum. draw or describe the strategy you use. 52+19

Respuesta :

Goldenroses5 Goldenroses5

28-08-2020

Answer:

71

Step-by-step explanation:

start with units digit 2+9=11 (in your head) ie 1

add 5+1 +1 (carry over) =7

71 is the answer

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