几道小学的简便计算1.90÷(50-75÷15)2.(50×2-20)÷163.90-15×4+404.3.2×1.255.57.2-2/5-11.6大哥,大姐们:是简便计算!
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几道小学的简便计算1.90÷(50-75÷15)2.(50×2-20)÷163.90-15×4+404.3.2×1.255.57.2-2/5-11.6大哥,大姐们:是简便计算!
几道小学的简便计算
1.90÷(50-75÷15)
2.(50×2-20)÷16
3.90-15×4+40
4.3.2×1.25
5.57.2-2/5-11.6
大哥,大姐们:
是简便计算!
几道小学的简便计算1.90÷(50-75÷15)2.(50×2-20)÷163.90-15×4+404.3.2×1.255.57.2-2/5-11.6大哥,大姐们:是简便计算!
1.90÷(50-75÷15)
=90÷(50-5)
=90÷45
=2
2.(50×2-20)÷16
=80÷16
=5
3.90-15×4+40
=90-60+40
=70
4.3.2×1.25
=1.25×8×0.4
=40
5.57.2-2/5-11.6
=57.5-(0.4+11.6)
=57.5-12
=45.5
1.90÷(50-75÷15)
=90/(50-5)
=90/45
=2
2.(50×2-20)÷16
=(100-20)/16
=80/16
=5
3.90-15×4+40
=90-60+40
=30+40
=70
4.3.2×1.25
=0.4*8*1.25
=0.4*10
=4
5.57.2-2/5-11.6
=57.2-(0.4+11.6)
=57.2-12
=45.2
我靠,你不是吧,这几个题都要问
1=2
2=5
3=70
4=4
5=45.2
最好是自己做啦:
1.90÷(50-75÷15)
=90/(50-5)
=90/45
=2
2.(50×2-20)÷16
=(100-20)/16
=80/16
=5
3.90-15×4+40
=90-60+40
=30+40
=70
4.3.2×1.25
=0...
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最好是自己做啦:
1.90÷(50-75÷15)
=90/(50-5)
=90/45
=2
2.(50×2-20)÷16
=(100-20)/16
=80/16
=5
3.90-15×4+40
=90-60+40
=30+40
=70
4.3.2×1.25
=0.4*8*1.25
=0.4*10
=4
5.57.2-2/5-11.6
=57.2-(0.4+11.6)
=57.2-12
=45.2
帮你一个小忙,把我设为最佳答案吧
收起
1.90÷(50-75÷15)
=90/(50-5)
=90/45
=2
2.(50×2-20)÷16
=(100-20)/16
=80/16
=5
3.90-15×4+40
=90-60+40
=70
4.3.2×1.25
=0.8*4*1.25
=0.5*(4*1.25)
=0.8*5
=4
5.57.2-2/5-11.6
=57.2-(0.4+11.6)
=57.2-12
=45.2
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