Respuesta :

valecaraza

Answer:9+10 is 19

1+1 is 2

2+2=4

9 * 9 is 81

12 * 12= 144

last one not sure

Step-by-step explanation:

TaehyungV3

Answer:

9 + 10 = 19

1 + 1 = 2

9 x 9 = 81

12 x 12 = 144

8,999,000 x 4,499,000 = 40,486,501,000,000

Step-by-step explanation:

You can check by using a calculator.

Hope this helped :)

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