简算:1/4×39+3/4×27
问题描述:
简算:1/4×39+3/4×27
答
1/4×39+3/4×27
=1/4(39+3×27)
=1/4×120
=30
简算:1/4×39+3/4×27
1/4×39+3/4×27
=1/4(39+3×27)
=1/4×120
=30