Question

1. 84 x 12

Explanation:

Step1: Multiply by units - digit

Multiply 84 by 2.
$84\times2 = 168$

Step2: Multiply by tens - digit

Multiply 84 by 10.
$84\times10 = 840$

Step3: Add the results

Add the products from step 1 and step 2.
$168 + 840=1008$

Answer:

1008