0

# How can you use mental math to find 3 x 122?

Updated: 10/26/2022

Wiki User

7y ago

3 x 2 = 6 and 3 x 1 = 3

so

122 = 2 + 20 +100

so 3 x 2 = 6

and 3 x 20 = 60

and 3 x 100 = 300

Total: 6 + 60 + 300 = 366

Wiki User

7y ago

Earn +20 pts
Q: How can you use mental math to find 3 x 122?
Submit
Still have questions?
Related questions

### How can you use mental math to find 3 times 122?

3 x 1 = 3 3 x 2 = 6 3 x 122 = 366

70

### Use the mental math technique of compensation to find the sum?

You can, if you wish.

use mental math

1800

### How do you use mental math to find the product 12x50?

You would multiply 12x5, and then just add a zero. The answer is 600.

### What math do you use when you are calculating density?

Mental math! aka in ur head

### How you can use mental math to find the value of n in the equation?

The answer depends on the equation. Very few people, if any, can use mental maths to find the value of n in logpi/7(3e) = 95.3. I would not even try!

### How does an optometrist use math?

optometrist use math 36 topics like subtracting adding mental math triangles and much more!

### How do you use mental math to find out 5.2 times 10?

Multiplying by 10 is simply sliding the decimal one place to the right. 5.2 * 10 = 52 Use mental floss to prevent decay of your morals. &#9632;

yes

### How do you use mental math to find a value?

Mental math is basically just giving an estimate of what the value will be, for example: 5x306= 5x3 and add 2 zeros will give you 1500 and the actual answer is 1530 so its kind of like rounding off to the nearest.