Compute 320 ÷ 8.

Compute 320 ÷ 8.

• A. 20
• B. 80
• C. 4
• D. 40

Answer: (D)

Dividing by 8 is asking how many times eight fits into 320. A quick way is to use the fact that 8 × 4 = 32. Since the number starts with 32, that gives you the first part of the quotient: 4. Bring down the remaining 0, and eight goes into 0 zero times, adding that zero to the quotient. So the total quotient is 40. In short, 8 × 40 = 320, so the result is 40.

Dividing by 8 is asking how many times eight fits into 320. A quick way is to use the fact that 8 × 4 = 32. Since the number starts with 32, that gives you the first part of the quotient: 4. Bring down the remaining 0, and eight goes into 0 zero times, adding that zero to the quotient. So the total quotient is 40. In short, 8 × 40 = 320, so the result is 40.