Round the numbers to the nearest hundred. Then estimate the value. <br> 715 + 283 = <input min="0" type="number" id ="imp4pg005q2a_1" class="lineinput" placeholder="?" /> + <input min="0" type="number" id ="imp4pg005q2a_2" class="lineinput" placeholder="?" /> = <input min="0" type="number" class="lineinput" placholder="?" />