Answer:
The required two subtraction equation is (10 - 5) + (5 - 2)
Explanation:
Consider the provided information,
We need to write two subtraction equations to show how to find 15-7
First consider the number 15
The number 15 can be written as:
15 = 10 + 5
The number 7 can be written as:
7 = 5 + 2
Now substitute the respective values in original expression.
(10 + 5) - (5 + 2)
Open the parentheses
10 + 5 - 5 - 2
Now rearrange them as shown below:
10 - 5 + 5 - 2
Close in parentheses.
(10 - 5) + (5 - 2)
Thus, the required two subtraction equation is (10 - 5) + (5 - 2)