1樓:_乵
(1)9.76÷3.2×1.6,
=3.05×1.6,
=4.88;
(2)(8+8)×12.5,
=8×12.5+8×12.5,
=100+100,
=200;
(3)7.5×2.3+2.3×3.5-2.3,=2.3×(7.5+3.5-1),
=2.3×10,
=23;
(4)10.5÷(5.3-4.6)+8.9,=10.5÷0.7+8.9,
=15+8.9,
=23.9.
遞等式計算(能簡算的要簡算).(1)91.2-43.68÷7.8(2)1.82×5.7÷0.3(3)8.0
2樓:紫月軍團
(1)91.2-43.68÷7.8,
=91.2-5.6,
=85.6;
(2)1.82×5.7÷0.3,
=10.374÷0.3,
=34.58;
(3)8.06×10.1-0.1×8.06,=8.06×(10.1-0.1),
=8.06×10,
=80.6;
(4)6÷0.125=48.
遞等式計算(能簡算的要簡算) 1、1.2×(9.6÷2.4)÷4.8 2、8.9×1.1×4.7 3、3.94+34.3×0.2
3樓:匿名使用者
解:(抄1)1.2×(9.6÷襲2.4)÷4.8=bai1.2÷2.4×du9.6÷4.8=1/2 ×2
=1(zhi2)8.9×1.1×4.73
=8.9×5.203
=(10-1.1)×5.203
=52.03-5.7233
=46.3067
(3)3.94+
dao34.3×0.2
=3.94+6,86
=10.8
用遞等式計算,能簡算的要簡算.(18%)(1)25×12-850÷17(2)(3.2÷16+10.8)÷22(3)3.2×12.5×2
4樓:匿名使用者
(du1)25×zhi12-850÷
dao17
=25×4×3-50,
=300-50,
=250;
(2)(3.2÷16+10.8)÷22
=(0.2+10.8)÷22,
=11÷22,
=0.5;
(3)3.2×12.5×2.5
=0.8×4×12.5×2.5,
=(12.5×0.8)×(2.5×4),
=10×10,
=100;
(4)7.05-3.84-0.16-1.05=7.05-1.05-(3.84+0.16),=6-4,
=2;(5)8
17×9-8÷17 8
=817
×9-8×8
17,=(9-8)×8
17,=1×8
17,=8
17;(6)5 6
×[2÷(7 8
-3 4
)]=5 6
×[2÷1 8
],=5 6
×16,
=40 3.
遞等式計算(能簡算的要簡算).(1)191.3-47.2+96.9(2)9.63+13.78-3.63(3)50.03-6.5-0.5(4)25×1
5樓:血刺朱雀澴
(du1)191.3-47.2+96.9,zhi=144.1+96.9,
=241;
(2)9.63+13.78-3.63,
=9.63-3.63+13.78,
=6+13.78,
=19.78;
(3)50.03-6.5-0.5,
=50.03-(6.5+0.5),
=50.03-7,
=43.03;
(4)25×125×16,
=25×125×(
dao2×8),
=(25×2)×(125×8),
=50×1000,
=50000;
(5)2506-506×3+27,
=2506-1518+27,
=988+27,
=1015;
(6)99×63+63,
=(99+1)×63,
=100×63,
=6300.
用遞等式計算(能簡便的要簡便)(1)9.9×101-9.9 ...
6樓:聽不清啊
9.9×101-9.9
=9.9*(101-1)
=9.9*100
=990
用遞等式計算(能簡算的要簡算).(1)15+325×10 &...
7樓:手機使用者
(1)15+3
25×10,=15
+65,=7
5;(2)內168.1÷(8.5-0.3),
容=168.1÷8.2,
=20.5;
(3)8.72+2.9+3.1+1.28,=(8.72+1.28)+(2.9+3.1),=10+6,
=16;
(4)4
15×29+7
9×415,
=415
×(29+79
),=4
15×1,
=415.
遞等式計算(能簡算的要簡算,並寫出必要的計算過程) 3.26+1.4+6.34+9.619600-600÷5×25300-3.25+6.75
8樓:幻彩
(1)3.26+1.4+6.34+9.6
=(3.26+6.34)+(1.4+9.6)=9.6+11
=20.6;
(2)19600-600÷5×25
=19600-120×25
=19600-3000
=16600;
(3)300-3.25+6.75
=296.75+6.75
=303.5;
(4)(36×19-19)÷35
=(684-19)÷35
=665÷35
=19;
(5)9600÷25
=9600÷25÷4×4
=9600÷(25×4)×4
=9600÷100×4
=96×4
=384;
(6)(67×76+76×58)×8
=76×(67+58)×8
=76×125×8
=76×(125×8)
=76×1000
=76000.
計算下面各題.(能簡算的要簡算)(1)24×12+76×12 (2)87.5÷12.5÷8 (3)(78+34)÷18 (4)9
9樓:強顏歡笑丶炳
(1)24×制1
2+76×12,
=12×(76+24),=12
×100,
=50;
(2)87.5÷12.5÷8,
=87.5÷(12.5×8),
=87.5÷100,
=0.875;
(3(78+3
4)÷18,
=78×8+3
4×8,
=7+6,
=13;
(4)91+91×(2
13-17),
=91+91×2
13-91×17,
=91+14-13,
=92;
(5)2.2×101,
=2.2×(100+1),
=2.2×100+2.2×1,
=220+2.2,
=222.2;
(6)14.6-3.625-6.375,
=14.6-(3.625+6.375),
=14.6-10,
=4.6.
用遞等式計算,能簡算的要簡算
1 100.18 9.6 18.53,90.58 18.53,109.11 2 0.963 23.89 0.063,0.963 0.063 23.89,0.9 23.89,24.79 3 2.5 0.3 2.5 0.3,2.5 2.5 0.3 0.3,1 0.3 0.3,0.09 4 2.8 10....
68x07505用遞等式計算能簡算的要簡算
6.8x0.75 0.5 6.8x0.75x2 6.8x1.4 9.52 6.8x0.75 0.5 遞等式計算 6.8x0.75 0.5 6.8x3 4 1 2 6.8x3 4x2 10.2 1 8x9 7 5 7 8能簡算的要簡算 1 8x9 7 5 7 8可以先將裡面的5 7 8化成5 7 1 ...
遞等式計算能簡則簡
1 87.23 11.9 4.1 87.23 11.9 4.1 87.23 16 71.23 2 13.72 6.84 1.28 9.16 13.72 1.28 6.84 9.16 15 16 31 3 73.35 28.77 63.35 32.23 73.35 63.35 28.77 32.23 ...