Respuesta :

Answer:

28980

Step-by-step explanation:

420 is equal to 42 times 10, 420 = 42 * 10

Instead of 69 * 420, you can write 69 * 42 * 10

69 * 42 is 2898, now multiply the product by 10 (move the decimal place one place to the right)

2898.00 * 10 = 28980.0 = 28980

Hope this helps :)

Have a great day!

sphace
69
•420
———
00
+ 138
2760
———-
28980