如题所述
第1个回答 2022-09-24
25乘478乘5简便运算？
25x478x5
=25x5x478
=(25x4)x(5x2)x478÷8
=100x10x478÷8
=478000÷8
=59750。
25x478x5
=25x5x478
=(25x4)x(5x2)x478÷8
=100x10x478÷8
=478000÷8
=59750。
第2个回答 2022-09-21
25x478x5
=25x5x478
=(25x4)x(5x2)x478÷8
=100x10x478÷8
=478000÷8
=59750
=25x5x478
=(25x4)x(5x2)x478÷8
=100x10x478÷8
=478000÷8
=59750
第3个回答 2022-09-21
25x478x5
=478x5x25
=2390x25
=59750
=478x5x25
=2390x25
=59750
第4个回答 2022-09-22
25×478×5
=25×2×239×5
=50×239×5
=11950×5
=59750
=25×2×239×5
=50×239×5
=11950×5
=59750
第5个回答 2022-09-24
25×478×5
=（25×5）×（480-2）
=125×（480-2）
=125×480-125×2
=125×（8×60）-250
=（125×8）×60-250
=1000×60-250
=60000-250
=59750
=（25×5）×（480-2）
=125×（480-2）
=125×480-125×2
=125×（8×60）-250
=（125×8）×60-250
=1000×60-250
=60000-250
=59750
