Question

78×4加上78×3加上78×3用简便方法计算

78×4加上78×3加上78×3用简便方法计算

Answer 1

78×4+78×3+78×3

=78x（4+3+3）
=78x10
=780

希望能帮到你！

Answer 2

78×4+78×3+78×3
=78×4+3×3
=78×10
=780