328乘以负0.25减147乘以负0,125加253乘以8分之1加72乘以负4分之1快,谢谢
问题描述:
328乘以负0.25减147乘以负0,125加253乘以8分之1加72乘以负4分之1
快,谢谢
答
320×(-0.25)-147×(-0.125)+253×1/8+72×(-1/4)=-80+18.375+31.625-8=-38