简算76×101-7658+39+42+614×39×2.5(25×15)×425×42×4125×323.6×97+3.6×34×25+16×2536×45+36×56-3668×10264×15-14×15167+289+3325×64×125378+525+750.4×25×1.6×255×289×2-数学

题文

简算
76×101-7658+39+42+614×39×2.5(25×15)×425×42×4
125×323.6×97+3.6×34×25+16×2536×45+36×56-3668×102
64×15-14×15167+289+3325×64×125378+525+750.4×25×1.6×25
5×289×279×2.5+2.54.08÷1.25÷0.8125×8887×9.9
101×0.82-0.8225×97+25×3(125+17)×866×93+93×33+93
8
9
+
4
11
+
1
9
=
1-
1
6
-
1
6
=
3
4
+
1
4
+
1
4
=
8
9
+
5
6
-
1
9
=
1-
3
6
-
1
6
=
题型:解答题  难度:中档

答案


(1)76×101-76,
=76×(100-1),
=76×100,
=7600;

(2)58+39+42+61,
=(58+42)+(39+61),
=100+100,
=200;

(3)4×39×2.5,
=39×(4×2.5),
=39×10,
=390;

(4)(25×15)×4,
=(25×4)×15,
=100×15,
=1500;

(5)25×42×4,
=(25×4)×42,
=100×42,
=4200;

(6)125×32,
=125×(4×8),
=(125×8)×4,
=1000×4,
=4000;

(7)3.6×97+3.6×3,
=3.6×(97+3),
=3.6×100,
=360;

(8)4×25+16×25,
=(4+16)×25,
=20×25,
=500;

(9)36×45+36×56-36,
=36×(45+56-1),
=36×100,
=3600;

(10)68×102,
=68×(100+2),
=68×100+68×2,
=6800+136,
=6935;

(11)64×15-14×15,
=(64-14)×15,
=50×15,
=750;

(12)167+289+33,
=(167+33)+289,
=200+289,
=489;

(13)25×64×125,
=25×(8×8)×125,
=(25×8)×(8×125),
=200×1000,
=200000;

(14)378+525+75,
=378+(525+75),
=378+600,
=978;

(15)0.4×25×1.6×25,
=0.4×25×(4×0.4)×25,
=(0.4×25)×(4×25)×0.4,
=10×100×0.4,
=1000×0.4,
=400;

(16)5×289×2,
=289×(5×2),
=289×10,
=2890;

(17)79×2.5+2.5,
=(79+1)×2.5,
=80×2.5,
=200;

(18)4.08÷1.25÷0.8,
=4.08÷(1.25×0.8),
=4.08÷1,
=4.08;

(19)125×88,
=125×(8×11),
=(125×8)×11,
=1000×11,
=11000;

(20)87×9.9,
=87×(10-0.1),
=87×10-87×0.1,
=870-8.7,
=861.3;

(21)101×0.82-0.82,
=(100-1)×0.82,
=100×0.82,
=82;

(22)25×97+25×3,
=25×(97+3),
=25×100,
=2500;

(23)(125+17)×8,
=125×8+17×8,
=1000+136,
=1136;

(24)66×93+93×33+93,
=(66+33+1)×93,
=100×93,
=9300;

(25)
8
9
+
4
11
+
1
9

=(
8
9
+
1
9
)+
4
11

=1+
4
11

=1
用简便方法计算125×32640÷5÷8653-98944+102.-数学
用简便方法计算125×32640÷
计算下面各题,能简算的要简算.①0.45+0.45÷0.9×1.8②9511-534-2.25③25×104④0.625×4.3+58×4.7+62.5%⑤(110+16)×10×6⑥38×20-38×3-38.-数学
计算下面各题,能简算的要简
用简便方法计算.135×50×23.6+8.59+6.4312×4+188×4.-数学
用简便方法计算.135×50×2
直接写出得数:100%-1=40×5%=2.1÷70%=4÷25%=2.5×100%=1÷14=12×(12+13)=10%+10%=-数学
直接写出得数:100%-1=40×5
脱式计算。(能简算的要简算)(1)21+210+2100+21000+210000+2100000(2)(3)-六年级数学
脱式计算。(能简算的要简算