explain how you can find the sum 25+59 without using pencil and paper or a calculator. then find the sum
You can do it in your head quite simply. 5+9 is 14, carry the 1, 5+2+1=8. So the sum is 84
I'd rather add 25 and 60, and then subtract 1.
My answer is 84 but what is the sum
To find the sum of 25+59 without using pencil and paper or a calculator, you can use mental math and the concept of place value. Here's an explanation of how you can do it:
Step 1: Break down the numbers into their place values.
The number 25 can be broken down into 20 and 5, while 59 can be broken down into 50 and 9. This way, it becomes easier to work with smaller numbers.
Step 2: Add the tens place values together.
To find the sum of the tens place values (20 and 50), you simply add them: 20 + 50 = 70.
Step 3: Add the ones place values together.
Next, add the ones place values (5 and 9): 5 + 9 = 14.
Step 4: Combining the results.
Now, you have the sum of the tens place values (70) and the sum of the ones place values (14). Combine these results to get the final sum: 70 + 14 = 84.
Therefore, the sum of 25 + 59 is 84.
By breaking down the numbers into their place values and using mental math, you can perform addition without the need for a pencil, paper, or calculator.