9.99×22.2+33.3×3.34 1/3+1/15+1/35+1/63+1/99+1/143
问题描述:
9.99×22.2+33.3×3.34 1/3+1/15+1/35+1/63+1/99+1/143
答
9.99×22.2+33.3×3.34
=33.3×6.66+33.3×3.34
=33.3×(6.66+3.34)
=33.3×10
=333