We have hundreds of course questions with personalized recommendations + Account 100% premium
To find the sum of the numbers and , we perform the following step-by-step arithmetic calculation:
Step 1: Arrange the numbers in a vertical column for addition:
Step 2: Start adding from the unit column (right to left). Add the digits in the ones column:
6 (from 26) + 9 (from 19) = 15. Write down 5 and carry over 1 to the tens column.
Step 3: Move to the tens column and add:
2 (from 26) + 1 (from 19) + 1 (carry) = 4, write down 4.
Thus, the sum of and is .
Therefore, the correct answer is .
If we have 67 blocks in total, how many blocks will remain if we remove 5 tens and 4 ones?
When you add digits and get a number 10 or higher, you write down the ones digit and 'carry' the tens digit to the next column. For example: 6 + 9 = 15, so write 5 and carry 1.
Place value matters! Ones must be added to ones, tens to tens. If numbers aren't aligned properly, you might accidentally add a tens digit to a ones digit.
You'll get the wrong answer! In this problem, forgetting the carried 1 would give you instead of in the tens column.
It's possible but much harder with carrying! The standard right-to-left method ensures you handle all carries systematically without missing any.
Try subtraction! Take your answer and subtract one of the original numbers. You should get the other original number: ✓
Get unlimited access to all 18 Natural Numbers around 100 questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime