Subtraction using Number Line
- Step 1: Begin by positioning the first number (8) as the starting point on the number line.
- Step 2: Next, progress from the first number by units equivalent to the second number towards the left. This is due to the descending nature of values on the number line toward the left. For instance, when subtracting 8 - 5, advance 5 units to the left. This progression leads to the number 3. Hence, 8 - 5 = 3.
The following animation demonstrates the Number Line method,
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Subtraction using Regrouping or Borrowing
- Step 1: Arrange the numbers 8, 5 to align them properly in respective columns for ones, tens, hundreds, and Thousands… stacking them vertically.
- Step 2: Begin by subtracting the digits in the one's place. If the bottom digit is greater than the top digit, borrow 1 from the tens column which will be combined to the number at the one's place.
- Step 3: After giving 1 to the one's place, the number at the ten's place will be reduced by one number. Next, subtract the numbers at the one's place.
- Step 4: We apply step 2 to the remaining digits in two-digit and larger numbers. As and when we borrow, we subtract the numbers simultaneously. Finally, we get the answer as 3
The following animation demonstrates the Regrouping/Borrowing method,
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