1楼:匿名用户
2.5×(
dao6+9.728÷
3.2)专
=2.5×属(6+3.04)
=2.5×9.04
=22.1
35.6-1.8+4.4-7.2
=(35.6+4.4)-(1.8+7.2)=40-10
=300.25×3.2×12.5
=(0.25×0.4)×(8×12.5)
=0.1×100
=1013.7×0.25-3.7÷4
=3.425-0.925
=2.5
2楼:想当猪的人
2.5*(6+9.728÷3.2)
=2.5*(6+3.04)
=2.5*9.04
=22.1
35.6-1.8+4.4-7.2
=(35.6+4.4)-(1.8+7.2)=40-10
=300.25*3.2*12.5
=(0.25*4)*(0.8*12.5)
=1*10
=1013.7*0.25-3.7÷4
=13.7*(1/4)-3.7*(1/4)=(13.7-3.7)*(1/4)
=30/4
=7.5
递等式计算,写出必要的计算过程,能简便计算的用简便方法计算:(1)7.06×2.4-5.7 (2)5.4×99+5.4
3楼:百度用户
(1)7.06×
2.4-5.7,
=16.944-5.7,
=11.244;
(2)5.4×99+5.4,
=5.4×(99+1),
=5.4×100,
=540;
(3)9.6×72+9.6×28,
=9.6×(72+28),
=9.6×100,
=960;
(4)(1.25×2.5)×4,
=1.25×(2.5×4),
=1.25×10,
=12.5;
(5)10.4+72×0.81,
=10.4+58.32,
=68.72;
(6)11×0.6×0.4,
=6.6×0.4,
=2.64;
(7)(12.8+4.99)÷0.2,
=17.79÷0.2,
=88.95;
(8)1.25×8+2.5×4.4,
=10+2.5×0.4×11,
=10+11,
=21.
用递等式计算写出必要的计算过程,能简便计算的要简便计算(1)28×105+7236÷18(2)4.5-3.15+0.5×8(3
4楼:匿名用户
(1)28×105+7236÷18
=2940+402
=3342
(2)4.5-3.15+0.5×8
=4.5-3.15+4
=5.35
(3)8.5×5.3+3.7×8.5+8.5=8.5×(
5.3+3.7+1)
=8.5×10
=85(4)(0.7+1.7)×15-36=2.4×15-36
=36-36=0
用递等式计算,写出必要的计算过程,能简便运算的要用简便方法计算.100-870÷29-8815÷7.5+4.6-6.63.5×
5楼:桃儿
1100-870÷
29-88
=100-30-88
=-18
215÷7.5+4.6-6.6
=2+4.6-6.6
=6.6-6.6
=033.5×
64×12.5
=(3.5×8)×内(8×12.5)
=28×100
=2800
4容51×7.5-49×7.5-1
=(51-49)×7.5-1
=2×7.5-1
=15-1
=1454×(4.8+3.2÷4-5.6)=4×(4.8+0.8-5.6)
=4×0
=06[8+(5-2)÷1.2]×5
=[8+3÷1.2]×5
=10.5×5
=52.5
用递等式计算.(写出必要的计算过程,能简便的用简便方法计算) (9.4-5.8)×2.07 12.54-4.56-3.44-1.
6楼:奈落
1(bai9.4-5.8)×
duzhi2.07,
dao=3.6×2.07,
=7.452;
212.54-4.56-3.44-1.54,=(12.54-1.54)-(4.56+3.44),内=11-8,
=3;3(9.36×5+9.36+9.36×2)×1.25,=9.36×(容5+2+1)×1.25,
=9.36×8×1.25,
=9.36×(8×1.25),
=93.6;
47.236÷0.18-14.3×0.02,=40.2-0.286,
=39.914.
递等式计算,能简便的简便(要过程)急急急急急急急急急急急!!!!!!!!!!!!
7楼:匿名用户
4.8.5是什么意思
(2)18.32+11.68-9.47-10.53=30-20
=10(5(7.4+1+9.6)*3/8
=18*3/8
=27/4
8楼:匿名用户
4.=36x5/12+36x3/4-36x1/6-4/9x36=15+27-6-16
=206。。
=14/15÷【18+48x5/6-5/8x48】=14/15÷28
=1/30
2.。。。。。
=18.32+11.68-(9.47+10.53)=30-20=10
脱式计算,写出主要计算过程,能用简便算法的要用简便算法. 112× 3 8 ÷ 3 4
9楼:猫武士创作
112×
bai3 8
÷du3 4
=12×3 8
×4 3
=6;24 9
+5 9
×9=4 9
+5=54 9
;314÷(
zhidao1 3
+5 6
)×3 4
=14÷7 6
×3 4
=14×6 7
×3 4
=9;43.6-2.8+16.4-7.2
=(3.6+16.4)-(2.8+7.2)=20-10
=10;
577×4 5
+23×0.8
=(77+23)×0.8
=100×0.8
=80.
脱式计算，能简便的要简便。5 8
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