128×7×53×89怎么用简便方法计算？

128×7×53×89怎么用简便方法计算？
解：128×7×53×89
=128×7×53×（100-11）
=128×7×53×100-128×7×53×11
=12800×7×53-1408×7×53
=12800×7×（50+3）-1408×7×（50+3)
=12800×7×50+12800×7×3-1408×7×50-1408×7x3
=12800×(10-3)×50+12800×(10-3)×3-1408×(10-3)×50-1408×(10-3)x3
=12800×10×50-12800×3×50+12800×10×3-12800×3×3-1408×10×50+1408×3×50-1408×10x3+1408×3x3
=12800x500-12800x150+12800x30-12800x9-1408x500+1408x150-1408x30+1408x9
=(12800-1408)x500-(12800-1408)x150+(12800-1408)x30-(12800-1408)x9
=11392x500-11392x150+11392x30-11392x9
=5696000-1708800+341760-102528
=4226432

128 X 7 X 53 X 89

=896 X 53 X (90-1)

=896 X (4770-53)
=896 X 4717
=(900-4 ）X 4717
=4245300 -18868
=4226432

直接计算过程方法如下
解:128×7×53×89
=896×53×89
=47488×89
=4226432

128×7×53×89怎么用简便方法计算？
128×7×53×89没有什么特别的简便方法计算，
128×7×53×89
=896×53×89
=47488×89
=4226432