1、99x27十27简便计算:
=99 x 27 + 27 x 1
=(99 + 1) x 27
=100 x 27
=2700
2、99x27十27简便计算:
=(100 - 1) x 27 +27
=100 x 27 - 27 + 27
=2700 -27 + 27
=2700
时间:2026-02-14 15:10:43
1、99x27十27简便计算:
=99 x 27 + 27 x 1
=(99 + 1) x 27
=100 x 27
=2700
2、99x27十27简便计算:
=(100 - 1) x 27 +27
=100 x 27 - 27 + 27
=2700 -27 + 27
=2700