Respuesta :

iszpak45

Answer:

Because you already see that the 3 plus 2 is 5 plus some numbers

Step-by-step explanation:

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You would estimate first look at the 100's place 3+2=5 so we already have 500 so we know that the sumis greater than 500 because is you at 61+83 with 500 its a larger number than just 500

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