Long Division Problem: Divide 640 by 8 Using Standard Method

Video Solution

Solution Steps

00:00 Solve

00:03 Let's start by dividing the leftmost digit by the divisor

00:07 8 is greater than 6, so we'll add the next digit and then divide

00:13 Write the result above, paying attention to the position

00:16 Now multiply the result by the divisor

00:20 Subtract the product from the number

00:25 Now bring down the next digit and repeat the same steps

00:28 Divide

00:31 Write the result above

00:34 Multiply the result and subtract

00:37 We got a remainder of 0

00:40 And this is the solution to the problem

Step-by-Step Solution

To solve this problem, we'll divide 640 by 8 using long division.

Step 1: Set up the long division, where 640 is the dividend inside the division bracket, and 8 is the divisor outside.
Step 2: Determine how many times 8 goes into the first digit, 6. It does not go into 6 since 6 is less than 8. Move to the next digit.
Step 3: Consider the first two digits, 64. 8 goes into 64 a total of 8 times since $8 \times 8 = 64$ . Write 8 above the division line.
Step 4: Subtract 64 from 64, which results in 0. Bring down the next digit, 0, from the dividend, making it 00.
Step 5: Determine how many times 8 goes into 0. It goes 0 times, so write 0 as the next digit of the quotient.
Step 6: The final required division is complete. The quotient is $80$ .

The result of dividing 640 by 8 is $80$ . Therefore, the correct answer is choice 3: $80$ .