利用乘法分配律计算下面各题。-i,?5u+O']*Q5m5O,k;e-r+@5R
（1）（125-40）×8-i,?5u+O']*Q5m5O,k;e-r+@5R
算式：提示.D7f;w-i,?5u+O']*Q5m5O,k;e-r+@5R
=9W1d/y,k)s6^(g'n:x:v-i,?5u+O']*Q5m5O,k;e-r+@5R
（2）57×4+43×4-i,?5u+O']*Q5m5O,k;e-r+@5R
算式：提示4x;E.p3S*V4j:d.p-i,?5u+O']*Q5m5O,k;e-r+@5R
=7z5`0J6`'H:@7k3~,N-i,?5u+O']*Q5m5O,k;e-r+@5R
（3）27×99+27-i,?5u+O']*Q5m5O,k;e-r+@5R
算式：提示8B3t1X-m7|.d-t4J9h-i,?5u+O']*Q5m5O,k;e-r+@5R
=-f4o1J9o-i,?5u+O']*Q5m5O,k;e-r+@5R
（4）48×101-i,?5u+O']*Q5m5O,k;e-r+@5R
算式：提示,p'S)n'q5z(S-i,?5u+O']*Q5m5O,k;e-r+@5R
=9w+w.^3j2z+Y3y/?*q0Z-i,?5u+O']*Q5m5O,k;e-r+@5R