The are 16 cups in a gallon. Which expressions describe how many cups are in four gallons? Check THREE that apply.

Question

4 × 16

16 + 4

16 × 4

16 ÷ 4

16 + 16 + 16 + 16

Answer 1

To find out how many cups are in four gallons, we can calculate it as follows:

Since there are 16 cups in one gallon, we can multiply the number of cups in one gallon by the number of gallons:

1. \(4 \times 16\) (correct, because it represents 4 gallons each containing 16 cups)
2. \(16 + 4\) (incorrect, does not correctly calculate total cups)
3. \(16 \times 4\) (correct, same as \(4 \times 16\), gives total cups)
4. \(16 \div 4\) (incorrect, this would find the cups in one gallon divided by 4, not the total)
5. \(16 + 16 + 16 + 16\) (correct, this adds the number of cups in 4 separate gallons)

The three correct expressions that describe how many cups are in four gallons are:

• \(4 \times 16\)
• \(16 \times 4\)
• \(16 + 16 + 16 + 16\)