Solve for the Missing Number: 8×7-3+?=60

According to the rules of operations, we first place the multiplication exercise in parentheses:

$(8\times7)-3+?=60$

$8\times7=56$

Now we obtain the exercise:

$56-3+?=60$

We reduce the subtraction exercise:

$56-3=53$

We obtain the exercise:

$53+?=60$

We move 53 to the other side and change to the correct sign:

$?=60-53$

$?=7$