Question

0.666✘7+0.111✘58怎样简便计算？

Answer 1

此题可用乘法分配律计算，0.111×42+0.111×58=0.111×（42+58）=0.111×100=11.1

Answer 2

0.666×7+0.111×58
=0.111×6×7+0.111×58
=0.111×(42+58)
=0.111×100
=11.1