一道六年级的简算题目!急急急
简算:
45.55-(6.82+15.55)
34.52-17.87-12.23
6.43-(1.4-0.57)
23.75-8.64-3.46
17.83-9.5-7.83-0.5
5.38+88.2-2.38+1.8
27.38-5.34+2.62-4.66
21.63-(8.5+9.63)
7.5-2.45+7.5+2.45
0.9+0.99+0.999
5.09-(0.09+1.23)
9.36-(4.36-3.5)
1.7+150 +3.98
17.625-(4.4+58 )
3.35×6.47×2+6.7×3.6
18.7-3.375-6.625
2.5×4.4
25×1.25×32
(3.75+4.1+2.35)×9.8
1.28+9.8+7.72+10.2
12 ×1120 +12 ×2049
1497+436
18.95-7.98
101*7.8
13.6+50+6.4
12.8+32+17.2
7.9+4.4+2.1
11.2+46+18.8
13.4+2.3+26.6
2.5+3.5+7.5
125*88
58+39+42+61
(125+17)*8
75*299+75
167+299+33+11
39*101
35*68+68+68*64
201*24
1、
(1998+1999+2000+。。。。。。+2008)/2003
=(1998+2008+1999+2007+2000+2006+2001+2005+2002+2004+2003)/2003
=2+2+2+2+2+1
=11
2、
十二分之七/[四分之一/(三分之一-四分之一)]*12
=7/12*12/3
=7/3
3、 分子是:三又四分之三*0.2
分母是:1.38
最后再乘上:5.52
=15/4*0.8
=3
4、
在下面的每个()里面填上适当的数
3.2*(1)=12.8/(4)=(1.1)+2.1=(3.22)-0.02=3.2
5、如果A是1~9这几个数字中的某一个
那么A+AA+AAA+AAAA+......+AAAAAA是A的多少倍?
=1+11+11......111111
=123456
0.125×2.75+1/8×4.75+12.5%=0.125x8x(2.75+4.75+1)÷8=8.5÷8=1.0625
2.3×1.7-2.3+2.3×0.3=2.3x(1.7-1+0.3)=2.3
0.125×2.75+1/8×4.75+12.5%
=0.125×(2.75+4.75+1)
=0.125×8.5
=1.625
2.3x0.7-2.3x0.3
换成分数,再分母有理化
一道六年级的简算题目!急急急视频
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