You line them up and down and then multiply the first ones up and down on the right. then you do the diagonally ones and then you put a zero on the bottom right. then you go to the second number on the right and do the one diagonally and then the on up and down. then you add the two together and you have your answer.
example:
9*4*2 = 72
If multiplying 3 digit numbers with 2 digit numbers. For example; 345 x 92= First you will start with 2 by multiplying it by 5 then carry the 1 above the 4 then multiply the "2" with 4 then add the number on-top of the 4 which is 1 and it will give you 9. 4 x 2= 8+1=9. Then times the 2 by 3 which is 6. That is not your answer, yet. 690 plus the amount you get by multiplying 9 by every number, 5 then carry the number, 4 times 9, plus the number above it, then carry the 3 on top of the 3. Then add your total to 690 or what ever your equation is.
16000
10 because 10 is the first 2 digit number out of all numbers.
148
first digit time second digit and second digit times first digit then repeat
You
by one by one
9*4*2 = 72
If multiplying 3 digit numbers with 2 digit numbers. For example; 345 x 92= First you will start with 2 by multiplying it by 5 then carry the 1 above the 4 then multiply the "2" with 4 then add the number on-top of the 4 which is 1 and it will give you 9. 4 x 2= 8+1=9. Then times the 2 by 3 which is 6. That is not your answer, yet. 690 plus the amount you get by multiplying 9 by every number, 5 then carry the number, 4 times 9, plus the number above it, then carry the 3 on top of the 3. Then add your total to 690 or what ever your equation is.
16000
10 because 10 is the first 2 digit number out of all numbers.
The only way to do that is something like [ 2.5 x 28 ] or [ 3.5 x 20 ]. It can't be done with whole numbers. Here's why: -- The smallest possible 2-digit whole number is 10. -- So the smallest possible product of two 2-digit whole numbers is 100. -- So it's not possible to multiply two 2-digit whole numbers and get 70 .
212
352
120 when you want to know something like that you multiply the digits together Ex. 12345-1 times 2 times 3 times 4 times 5=120
95 times 2