<div class="daire">
  <img src="http://fatihhayrioglu.com/images/koy_06.jpg" alt="">
  <span>+</span>
  <img src="https://fatihhayrioglu.com/images/abstract-5.jpg" alt="">
  <span>=</span>
  <div class="duvar">Çoklu ardalan (multiply)</div>
</div>

.duvar {
  margin: 10px;
  width: 250px;
  height: 165px;
  background: url(http://fatihhayrioglu.com/images/koy_06.jpg), url(https://fatihhayrioglu.com/images/abstract-5.jpg);
  background-blend-mode: multiply;
  text-align: center;
  color: #fff;
  font-size: 20px;
  text-shadow: 3px 3px 3px rgba(0,0,0,.8);
}

.daire {
  display: flex;
  align-items: center;
}

span {
  font-size: 36px;
}

img {
  width: 250px;
  height: 165px;
  margin: 10px;
}