5*9 = 45 so 50*90 = 4500.
GIMME THE ANSWER
how to do mental math useing propertys
Put 2 zeros at the end of 25. 2,500...
510 divide by 52 using mental math and using long div = 9.807692307692308
Well, isn't that a happy little math problem! To find 53 times 7 using mental math, you can break it down into smaller, easier calculations. You can think of it as 50 times 7 plus 3 times 7, which equals 350 plus 21, giving you a final answer of 371. Just like painting a beautiful landscape, sometimes all it takes is a few simple brushstrokes to create something wonderful.
197
50 what's "mental math" supposed to mean? if it just means you did it in your head, then there is no difference between mental and regular math, except that it is harder to check your work.
3.4
You
Oh, dude, that's easy peasy lemon squeezy! You just gotta remember that multiplying by 100 is like adding two zeros to the end of the number. So, 4 times 100 is 400. Boom, done! No need for a calculator, just flex those mental math muscles.
4 x 8 = 32. Add 2 zeros. 40 x 80 = 3200
Multiply 3 times 25 mentally (the answer is 75), and then adding three zeroes will give the total of 75,000.