Respuesta :

Step-by-step explanation:

A two-digit number, such as 79, contains a tens place and a ones place.

That is because 79 is also equal to 70 + 9.

The tens place is thus the 7, since since 7 × 10 = 70

and the ones place is the 9.

So lets Subtract breaking apart 143 - 79.

Break 79 down into its parts:

70 + 9.

Subtract 70 from the original number:

143 - 70 = 73

Subtract 9 from the answer:

73 - 9 = 64

Therefore, 64 is the final answer.