Answer:
1620
Explanation:
How to calculate 81 multiplied by 20 using long multiplication.
Here is step-by-step how to calculate 81 times 20 using long multiplication:
Step 1: Setup
Set up your multiplication problem like this:
81
x20
Step 2: Multiply
1 x 0 = 0. Put 0 below the line and 0 as a reminder on top:
0
81
x 20
0
Step 3: Multiply
0 x 8 = 0. Take 0 and add 0 from the previous step to get 0. Enter 0 at the bottom:
81
x 20
00
Step 4: Add 0
Enter a 0 at the bottom right as a place holder, because you now move over one digit:
81
x 20
00
+ 0
Step 5: Multiply
2 x 1 = 2. Put 2 below the line and 0 as a reminder on top:
0
81
x 20
00
+20
Step 6: Multiply
2 x 8 = 16. Take 16 and add 0 from the previous step to get 16. Enter 16 at the bottom:
81
x 20
00
+ 1620
Step 7: Add to get answer
Add up the bottom two numbers (0 + 1620 = 1620) to get the answer:
81
x 20
00
+1620
=1620
The bottom line is the answer. Therefore, 81 times 20 equals:
1620