Question

4.3×7.1+5.7×7.1的简便计算

4.3×7.1+5.7×7.1的简便计算

Answer 1

4.3×7.1+5.7×7.1
=（4.3+5.7）x7.1
=10x7.1
=71

Answer 2

4.3x7.1+5.7x7.1

=（4.3+5.7）x7.1

=10x7.1

=71

Answer 3

4.3×7.1+5.7×7.1
=7.1×（4.3+5.7）
=7.1×10
=71