1

Question

9
×
1
8

Answer 1

To multiply 19 by 18, you can set it up as follows:

   19
×  18
______

Now, multiply each digit of the bottom number (18) by the top number (19):

1. Multiply 19 by 8:

   • \( 19 \times 8 = 152 \)

2. Multiply 19 by 1 (but remember this is actually 10, since it's in the tens place):

   • \( 19 \times 1 = 19 \)
   • Since it's in the tens place, you add a zero at the end: \( 19 \times 10 = 190 \)

Now, add the two results together:

   152
+ 190
______
   342

So, \( 19 \times 18 = 342 \).