几道小学简便计算题,要脱式计算!一定要简便计算啊,要脱式计算,对了再加5分1.4567-3456+1056-1672.85*27+85*733.99*99+994.125*315.998+1413+99896.9/13+13/9+11/13+14/9+6/137.2003-2002+2001-2000+1999-1998+19978.88+76+81+82+77+80+79+839.28/3*26*15/26/1410.60000/2/125/5/8
几道小学简便计算题,要脱式计算!
一定要简便计算啊,要脱式计算,对了再加5分
1.4567-3456+1056-167
2.85*27+85*73
3.99*99+99
4.125*31
5.998+1413+9989
6.9/13+13/9+11/13+14/9+6/13
7.2003-2002+2001-2000+1999-1998+1997
8.88+76+81+82+77+80+79+83
9.28/3*26*15/26/14
10.60000/2/125/5/8
1.4567-167+1056-3456=4400-2400=2000 2.85*(27+73)=8500 3.99*(99+1)=9900 4.125*(4*8-1)=4000-125=3875 5.998+2+1400+11+9989=12400
1.4567-3456+1056-167
=(4567-167)—(3456-1056)
2.85*27+85*73
=85*(27+73)
3.99*99+99
=99*(99+1)
4.125*31
=125*8*4-125
5.998+1413+9989
=(998+2)+(9989+11)+1400
6.9/13+13/9+11/13+14/9+6/13
=(9/13+11/13+6/13)+(13/9+14/9)
7.2003-2002+2001-2000+1999-1998+1997
=(2003+1997)-(2002+1998)+(2001+1999)-2000
8.88+76+81+82+77+80+79+83
=80*8+(8-4+1+2-3-1+3)
9.28/3*26*15/26/14
=(28÷14)×(26÷26)×(15÷3)
10.60000/2/125/5/8
=60000÷[(2×5)×(125×8)]
4567-3456+1056-167=4567-167-(3456-1056)=2000
85*27+85*73=(27+73)*85=8500
99*99+99=(99+1)*99=9900
125*31=125*30+125*1=3875
998+1413+9989=998+2+1400+9989+11=12400
.9/13+13/9+11/13+14/9+6/13=(9/13+11/13+6/13)+(13/9+14/9)=5
2003-2002+2001-2000+1999-1998+1997=200+3-2000-2+2000+1-2000+2000-1-2000+2+2000+3=2005
88+76+81+82+77+80+79+83=(88+82)+76+(81+79)+(77+83)+80=646 28/3*26*15/26/14= (28/3*1/14)*(26*15/26)=10
60000/2/125/5/8=6000*1/2/(125*5*8)=3/5
1.(4567-167)-(3456-1056)=4400-2400=2000
2.85*(27+73)=8500
3.99*(99+1)=9900
4.125*(30+1)=3750+125=3875
5.998+(11+2+1400)+9989=(998+2)+(11+9989)+1400=12400
6.(9/13+11/13+6/13)+(13/9+14/9)=2+3=5
7. (2003-2002)+(2001-2000)+(1999-1998)+1997=1+1+1+1997=2000
8.(88+82)+(83+77)+(81+79)+80 +76=170+160+160+80+76=646
9.28/3*26*15/26*1/14=(28/3*1/14)*(26*15/26)=15*2/3=10
4567-3456+1056-167=(4567-167)-(3456-1056)=4400-2400=200085*27+85*73=85*(27+73)=85*100=850099*99+99=99*99+99*1=99*(99+1)=99*100=9900125*31=125*(30+1)=125*30+125*1=3750+125=3875998+1413+9989=(987+11)+14...