8.88x0.15+265x0.0888+5.2x8.88+0.888x20=?要次提取公因数,要简便计算.
问题描述:
8.88x0.15+265x0.0888+5.2x8.88+0.888x20=?要次提取公因数,要简便计算.
答
提取8.88
8.88(0.15+2.65+5.2+2)
答
8.88x0.15+265x0.0888+5.2x8.88+0.888x20
=8.88x0.15+2.65x8.88+5.2x8.88+8.88x2
=8.88x(0.15+2.65+5.2+2)
=8.88x10
=88.8