A 3 or 4 digit number.
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Multiplication in general is important; not just 2-digit numbers.
3
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.
A 3 or 4 digit number.
-1
What is multiplying 2-Digit by 2-Digit numbers
6
Multiplication in general is important; not just 2-digit numbers.
3
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.
1
-2
The ones digit in the product from multiplying the 305 prime numbers less than 2012 is 0 because the ones digit becomes 0 after 2 and 5 have been multiplied and remains unchanged after more prime numbers are multiplied.
You have 4 options for the first digit, 3 for the second, 2 for the third. Multiplying all this you get 4 x 3 x 2 = 24 options.
To calculate the 2 digit numbers divisible by 19, you simply start out by multiplying 19 by 2, then by 3, etc., until you reach a number that is 99 or less. The reason you have do it until you reach a number that is 99 is because after 99 you have a 3 digit number. 19 x 2 = 36 19 x 3 = 57 19 x 4 = 76 19 x 5 = 95 So, the 2 digit numbers divisible by 19 are 36, 57, 76, 95