!!!HELPPP PLEASEEE!!! For this problem I thought it meant to subtract 0.1492 - 0.1515 = -0.0023 however my answer was incorrect. How do I solve this problem then? Help Please!

HELPPP PLEASEEE For this problem I thought it meant to subtract 01492 01515 00023 however my answer was incorrect How do I solve this problem then Help Please class=