15⋅37+15⋅63 .
Which expression can she use?
The expression that can be used to calculate the given expression is:
15 * (37 + 63)
To understand why this expression is correct, let's break it down step by step:
1. Start by calculating the sum within the parentheses: 37 + 63 = 100.
2. Multiply the result from step 1 by 15: 100 * 15 = 1500.
Therefore, the expression 15 * (37 + 63) can be used to calculate 15⋅37+15⋅63, resulting in the answer 1500.