1楼:手机用户
(1)6.8×0.75÷0.5,
=68×(0.75÷0.5),
=68×1.5,
=102;
(2)13.5÷2.5-2.75,
=5.4-2.75,
=2.65;
(3)0.125×0.25×32,
=0.125×0.25×4×8,
=(0.125×8)×(0.25×4),
=1×1,
=1;(4)0.9+9.9+99.9+0.3,=(1-0.1)+(10-0.1)+(100-0.1)+0.3,=111-0.3+0.3,
=111.
脱式计算.(能简算的要简算)17.68÷5.2+3.430.6×1.5÷5.13.2×
2楼:小鬔
(1)17.68÷5.2+3.4
=3.4+3.4,
=6.8;
(2)30.6×1.5÷5.1,
=30.6÷5.1×1.5,
=6×1.5,
=9;(3)3.2×2.08-0.6,
=6.656-0.6,
=6.056;
(4)3.8÷2.5÷4,
=3.8÷(2.5×4),
=3.8÷10,
=0.38.
6.8x0.75÷0.5 用递等式计算 能简算的要简算
3楼:经卡了开发区
=6.8x0.75/0.5
=6.8x0.75x2
=6.8x1.4
=9.52
脱式计算能简便的渐变6.8乘0.75/0.5 13.75/0.125-2.75 1.53+23.4/7.2 2.85/1.25/0.8 10.5*0.25*12
4楼:新野旁观者
6.8乘0.75/0.5
=6.8×(0.75×2)
=6.8×1.5
=10.2
13.75/0.125-2.75
=13.75×8-2.75
=110-2.75
=107.25
1.53+23.4/7.2
=1.53+23.4÷9÷0.8
=1.53+2.6÷0.8
=1.53+3.25
=4.78
2.85/1.25/0.8
=2.85÷(1.25×0.8)
=2.85
10.5*0.25*12
=10.5×(12÷4)
=10.5×3
=31.5
5楼:牢昊硕
你怎么跟我要求的一样啊,第一题我会,10.24/1.25/8 =10.24/(1.25*8) =10.24/10 =1.024
6楼:挚爱
0.25乘32乘1.7乘12.5的简便计算脱式,谁能帮帮我啊!谢谢各位了!o(∩_∩)o~
脱式计算(能简算的要简算)①31315?21314+5215?1114②14.85-1.58×8+31.2÷1.2③2.25×35+2.75÷123+60%
7楼:打铁王
①313
15-213
14+52
15-1114,
du=(313
15+52
15)-(213
14+11
14),
=9-4,
=5;②14.85-1.58×zhi8+31.2÷1.2,=14.85-12.64+26,
=28.21;
③2.25×3
5+2.75÷12
3+60%,
=2.25×0.6+2.75×0.6+0.6,=(2.25+2.75+1)×dao0.6,=6×0.6,
=3.6;
④1000+999-998-997+996+995-994-993+…内+104+103-102-101,
=(1000+999-998-997)+(996+995-994-993)+…+(104+103-102-101),
=4+4+…+4,
=4×(容900÷4),
=900.
脱式计算.(能简算的要简算)①1÷0.25+0.25÷1-2.5×0.1② 1+2+3+4+5+6+5+4+3+2+1 6666662
8楼:手机用户
①1÷0.25+0.25÷1-2.5×0.1,=4+0.25-0.25,
=4+(62616964757a686964616fe78988e69d83313333353336660.25-0.25),
=4+0,
=4;②1+2+3+4+5+6+5+4+3+2+16666662
,=36 6666662
,=18×2
3333331×2
,=18 3333331
;③2 2×4
+24×6
+26×8
+28×10
+210×12
,=1 2
-1 4
+1 4
-1 6
+1 6
-1 8
+1 8
-110
+110
-112
,=1 2
-112
,=512
;④1÷(1-0.99)-99÷(1-0.999),=1÷0.01-99÷0.001,
=100-99000,
=-98900.
脱式计算:能简算的要简算。,脱式计算:一、能简算的要简算。③4/7×5/9+3/7×5/9 = = = =
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