Question

2.6*1.9/2.6*1.9用简便方法计算

Answer 1

2.6×1.9÷2.6×1.9
=（2.6÷2.6）×（1.9×1.9）
=1.9×1.9
=3.61

Answer 2

2.6×1.9÷2.6×1.9
=（2.6÷2.6）×（1.9×1.9）
=1.9×1.9
=3.61