简便计算题 如下 好的 50 分·~89+124+11+26+48975-147-23125x64134x8+8x66365x993000÷125÷8
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/24 14:01:19
简便计算题 如下 好的 50 分·~89+124+11+26+48975-147-23125x64134x8+8x66365x993000÷125÷8
简便计算题 如下 好的 50 分·~
89+124+11+26+48
975-147-23
125x64
134x8+8x66
365x99
3000÷125÷8简便计算题 如下 好的 50 分·~89+124+11+26+48975-147-23125x64134x8+8x66365x993000÷125÷8
89+124+11+26+48
=89+11+124+26+48
=100+250+48
=398
975-147-23
=975-(147+23)
=975-170
=805
125x64
=125x8x8
=1000x8
=8000
134x8+8x66
=8x(134+66)
=8x200
=1600
365x99
=365x(100-1)
=365x100-365
=36500-365
=36135
3000÷125÷8
=3000÷(125x8)
=3000÷1000
=31. (89+11)+(124+26)+48
=100+150+48
=298
2. 975-(147+23)
=975-170
=805
3.125x8x8
=1000x8
=8000
4. 8x(134+66)
=8x200
=1600
5.365x(100-1)
=365x100-365x1
=36500-365
=36135
6.3000/(125x8)
=3000/1000
=31.
89+124+11+26+48
89和11结合,124和26结合
=100+150+48=298
2.
975-147-23
147和23结合
=975-170
=805
3.
125x64
64拆分为8*8
=125*8*8
=1000*8
=8000
4.
13...全部展开
1.
89+124+11+26+48
89和11结合,124和26结合
=100+150+48=298
2.
975-147-23
147和23结合
=975-170
=805
3.
125x64
64拆分为8*8
=125*8*8
=1000*8
=8000
4.
134x8+8x66
提取出134和66来相加
=(134+66)*8
=200*8
=1600
5.
365x99
把99看做100-1
=365*(100-1)
=365*100-365
=36500-365
=36135
6.
3000÷125÷8
把125和8结合
=3000/(125*8)
=3000/1000
=3
希望对楼主有所帮助,望采纳!收起