如题所述
第1个回答 2020-11-13
1.9×101怎么简算。简算是:
1.9×101
=1.9×(100+1)
=1.9×100+1.9×1
=190+1.9
=191.9
1.9×101
=1.9×(100+1)
=1.9×100+1.9×1
=190+1.9
=191.9
第2个回答 2020-11-13
这道题可利用乘法分配律进行计算比较简便。
1.9x101
=1.9x(100+1)
=1.9x100+1.9x1
=190+1.9
=191.9
1.9x101
=1.9x(100+1)
=1.9x100+1.9x1
=190+1.9
=191.9
第3个回答 2020-11-13
1.9x101=1.9x(100+1)
=190+1.9
=191.9
=190+1.9
=191.9