Question

72X2X50用简便方法计算

Answer 1

72×2×50简便计算
解：原式=72×（2×50）
=72×100
=7200

Answer 2

=72×（2×50）
=72×100
=7200

Answer 3

原式=72×(2x50)=72x100=7200

Answer 4

=2×50×72
=100×72
=7200