0
yes you can just multiply the 8 and the 5 then add all the zeros you have in the 800 to your answer. EX. 8x5=45 <-- your answer then add the 2 zeros your final answer is 4500
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How can you use mental math to multiply 800 times 5?
First take out the 2 zero's. then you have 8x5. Multiply then add the 2 zero's. now you have 8500 which is the answer.
How can you use mental math to multiply 800 x 5?
First you just multiply 8 by 5, which is 40. Tack on two 0's at the end to get 4000.
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.
How do you use mental math to multiply two numbers?
The easiest way to do this is to round each figure to the nearest ten. Once you have that, it should be an easy matter to multiply. Hope this helps
How you use mental math to find 3000x25?
Multiply 3 times 25 mentally (the answer is 75), and then adding three zeroes will give the total of 75,000.
What math do you use when you are calculating density?
Mental math! aka in ur head
How does an optometrist use math?
optometrist use math 36 topics like subtracting adding mental math triangles and much more!
How can you use mental math to turn a decimal into a fraction?
yes
How would you use mental math to find 164 - 94?
70
Use the mental math technique of compensation to find the sum?
You can, if you wish.
How can you use mental math to find 3000 X 25?
Split 3000 x 25 into 3 x 1000 x 25. Figure 3 x 25, and multiply that by 1000, and there you go.
How could you use a mental math strategy to find 290 plus 602?
You could break down the corresponding elements. So you could add the 600 and the 200 giving 800. You could then add the 90 and the 2, giving 92. Then add the 800 and the 92, giving 892.
