How to calculate 42 multiplied by 12 using long multiplication. Here is step-by-step how to calculate 42 times 12 using long multiplication:
Step 1: Setup
Set up your multiplication problem like this:
4 | 2 | |||||||
x | 1 | 2 | ||||||
Step 2: Multiply
2 x 2 = 4. Put 4 below the line and 0 as a reminder on top:
0 | ||||||||
4 | 2 | |||||||
x | 1 | 2 | ||||||
4 |
Step 3: Multiply
2 x 4 = 8. Take 8 and add 0 from the previous step to get 8. Enter 8 at the bottom:
4 | 2 | |||||||
x | 1 | 2 | ||||||
8 | 4 |
Step 4: Add 0
Enter a 0 at the bottom right as a place holder, because you now move over one digit:
4 | 2 | |||||||
x | 1 | 2 | ||||||
8 | 4 | |||||||
+ | 0 |
Step 5: Multiply
1 x 2 = 2. Put 2 below the line and 0 as a reminder on top:
0 | ||||||||
4 | 2 | |||||||
x | 1 | 2 | ||||||
8 | 4 | |||||||
+ | 2 | 0 |
Step 6: Multiply
1 x 4 = 4. Take 4 and add 0 from the previous step to get 4. Enter 4 at the bottom:
4 | 2 | |||||||
x | 1 | 2 | ||||||
8 | 4 | |||||||
+ | 4 | 2 | 0 |
Step 7: Add to get answer
Add up the bottom two numbers (84 + 420 = 504) to get the answer:
4 | 2 | |||||||
x | 1 | 2 | ||||||
8 | 4 | |||||||
+ | 4 | 2 | 0 | |||||
= | 5 | 0 | 4 |
The bottom line is the answer. Therefore, 42 times 12 equals:
504
Long Multiplication Calculator
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How to calculate 43 multiplied by 12
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