Noah had to water 7 plants. Each plant needed 14 ounces of water. Noah multiplied to find out how much water he would need. Which equation shows the addition eqation he could use to check his answer?

A. 14 + 14 + 14 +14 + 14 + 14 + 14 = 98
B. 14 + 7 = 21
C. 14 + 14 + 14 +14 + 14 + 14 = 84
D. 7 + 7 + 7 + 7 + 7 + 7 + 7 = 49

1 answer

To find out how much water Noah needed for 7 plants, he multiplied the number of plants by the amount of water each plant needed:

\(7 \times 14 = 98\) ounces of water.

To check his answer, he could use an addition equation that adds up the amount of water needed for each of the 7 plants individually.

The correct addition equation that shows this would be:

A. \(14 + 14 + 14 + 14 + 14 + 14 + 14 = 98\)

So the answer is A.