1樓:匿名使用者
我來答 檢視全部11個回答
凌月霜丶
知道合夥人教育行家 推薦於 2018-02-24(1)2.64×1.7-2.64×0.7
=2.64×(1.7-0.7)
=2.64×1
=2.64
(2)31.5×1.07-3.15×0.7=3.15×10.7-3.15×0.7
=3.15×(10.7-0.7)
=3.15×10
=31.5
(3)2.7×5.7-2.7+5.3×2.7=2.7×(5.7-1+5.3)
=2.7×10
=27(4)0.625÷0.125×0.8=(0.625×0.8)×8÷(0.128×8)=0.5×8÷1
=4(5)18.6×6.1+3.9×18.6=18.6×(6.1+3.9)
=18.6×10
=186
(6)1.3579+3.5791+5.7913+7.9135+9.1357
=(1+3+5+7+9)×1.1111
=25×1.1111
=27.7775
(7)52.5x2.9+5.45
=5.25x29+5.25+0.2
=5.25×(29+1)+0.2
=5.25×30+0.2
=157.5+0.3
=157.7
(8)0.92x15+0.08x15
=(0.92+0.08)×15
=1×15
=15(9)0.72×1.25×2.5
=0.9×(0.8×1.25)×2.5
=0.9×1×2.5
=2.25
(10)400.6x7-2003x0.4
=200.3x14-200.3x4
=200.3×(14-4)
=200.3×10
=2003
2樓:凌月霜丶
(1)2.64×1.7-2.64×0.7
=2.64×(1.7-0.7)
=2.64×1
=2.64
(2)31.5×1.07-3.15×0.7=3.15×10.7-3.15×0.7
=3.15×(10.7-0.7)
=3.15×10
=31.5
(3)2.7×5.7-2.7+5.3×2.7=2.7×(5.7-1+5.3)
=2.7×10
=27(4)0.625÷0.125×0.8=(0.625×0.8)×8÷(0.128×8)=0.5×8÷1
=4(5)18.6×6.1+3.9×18.6=18.6×(6.1+3.9)
=18.6×10
=186
(6)1.3579+3.5791+5.7913+7.9135+9.1357
=(1+3+5+7+9)×1.1111
=25×1.1111
=27.7775
(7)52.5x2.9+5.45
=5.25x29+5.25+0.2
=5.25×(29+1)+0.2
=5.25×30+0.2
=157.5+0.3
=157.7
(8)0.92x15+0.08x15
=(0.92+0.08)×15
=1×15
=15(9)0.72×1.25×2.5
=0.9×(0.8×1.25)×2.5
=0.9×1×2.5
=2.25
(10)400.6x7-2003x0.4
=200.3x14-200.3x4
=200.3×(14-4)
=200.3×10
=2003
3樓:匿名使用者
152×
3÷2=456÷2
=228
43×12×6
=516×6
3096
200+25×33
=200+825
=1025
(25+26)×48
=51×48
=2448
576-(290+107)
=576-397
=179
腦子已短缺,只有這麼多
4樓:匿名使用者
62×7.1+2.9,
=440.2+2.9,
=443.1;
4.2×0.25,
=(4+0.2)×0.25,
=4×0.25+0.2×0.25,
=1+0.05,
=1.05;
5.2×4.3+0.8×4.3,
=(5.2+0.8)×4.3,
=6×4.3,
=25.8.
8.5+1.5÷0.25×4,
=8.5+6×4,
=8.5+24,
=32.5.
0.25×0.8+2.5%
=0.2+2.5%,
=0.225;
32×125×2.5,
=4×8×125×2.5,
=8×125×(4×2.5),
=1000×10,
=10000;
94÷(6.84×8.5-31.46÷0.55),=94÷(58.14-57.2),
=94÷0.94,
=100.
13÷0.4÷2.5,
=13÷(0.4×2.5),
=13÷1,
=13;
1.25×2.5×0.8,
=(1.25×0.8)×2.5,
=1×2.5,
=2.5;
1.5×101-1.5,
=1.5×(101-1),
=1.5×100,
=150;
4.8×101,
=4.8×100+4.8×1,
=480+4.8,
=484.8.
3.25×4.7-7.8,
=15.275-7.8,
=7.475;
0.57+0.43×0.24,
=0.57+0.1032,
=0.6732.
945÷5÷3,
=189÷3,
=63;
152×3÷2,
=456÷2,
=228;
43×12×6,
=516×6,
=3096.
200+25×33,
=200+825,
=1025;
(25+26)×48,
=51×48,
=2448.
576-(290+107),
=576-397,
=179;
649+124-556,
=773-556,
=217.
4.82-5.2÷0.8×0.6,
=4.82-6.5×0.6,
=4.82-3.9,
=0.92.
我這兒有哦,這麼多,不知道你夠不夠
5樓:新野旁觀者
1.3/7 × 49/9 - 4/3
2.8/9 × 15/36 + 1/27
3.12× 5/6 – 2/9 ×3
4.8× 5/4 + 1/4
5.6÷ 3/8 – 3/8 ÷6
6.4/7 × 5/9 + 3/7 × 5/97.5/2 -( 3/2 + 4/5 )
8.7/8 + ( 1/8 + 1/9 )9.9 × 5/6 + 5/6
10.3/4 × 8/9 - 1/3
11.7 × 5/49 + 3/14
12.6 ×( 1/2 + 2/3 )
13.8 × 4/5 + 8 × 11/514.31 × 5/6 – 5/6
15.9/7 - ( 2/7 – 10/21 )16.5/9 × 18 – 14 × 2/717.
4/5 × 25/16 + 2/3 × 3/418.14 × 8/7 – 5/6 × 12/1519.17/32 – 3/4 × 9/2420.
3 × 2/9 + 1/3
21.5/7 × 3/25 + 3/7
22.3/14 ×× 2/3 + 1/6
23.1/5 × 2/3 + 5/6
24.9/22 + 1/11 ÷ 1/2
25.5/3 × 11/5 + 4/3
26.45 × 2/3 + 1/3 × 1527.7/19 + 12/19 × 5/628.1/4 + 3/4 ÷ 2/3
29.8/7 × 21/16 + 1/2
30.101 × 1/5 – 1/5 × 21
6樓:星辰
一年級數學十道簡便計算時這個六年級的數學也是說簡單也簡單說難也很難現在的孩子的質量越來越提高了
7樓:匿名使用者
題目:62.1x6+5x62.1-62.1答案:=62.1x(6+5-1)
=62.1×10
=621
8樓:豔陽天
第四題的0.128×8不等於1因該是0.125×8
9樓:匿名使用者
47x29十47x71
=47x(29+71)
=47x100
=4700
92x99+92
=(99+1)x92
=100x92
=9200
210x23
=(200+1)x23
=200x23+23x1
=4600+23
=4623
10樓:匿名使用者
來個方程
x-2/7x=3/4
?解:5/7x=3/4
x=3/4×7/5
x=21/20
謝謝您?!!!!!!!
11樓:留下陪我生活
非常完美,但是有一點點批漏,繼續加油!!!?????????
12樓:匿名使用者
沒有a(•̀へ •́ ╮ )
13樓:匿名使用者
其實自己寫幾道就可以了
14樓:匿名使用者
1十1二田,1一1二日
15樓:龐傑
謝謝你給我給的這些題
16樓:匿名使用者
(1)2.64×1.7-2.64×0.7
=2.64×(1.7-0.7)
=2.64×1
=2.64
(2)31.5×1.07-3.15×0.7=3.15×10.7-3.15×0.7
=3.15×(10.7-0.7)
=3.15×10
=31.5
(3)2.7×5.7-2.7+5.3×2.7=2.7×(5.7-1+5.3)
=2.7×10
=27(4)0.625÷0.125×0.8=(0.625×0.8)×8÷(0.128×8)=0.5×8÷1
=4(5)18.6×6.1+3.9×18.6=18.6×(6.1+3.9)
=18.6×10
=186
(6)1.3579+3.5791+5.7913+7.9135+9.1357
=(1+3+5+7+9)×1.1111
=25×1.1111
=27.7775
(7)52.5x2.9+5.45
=5.25x29+5.25+0.2
=5.25×(29+1)+0.2
=5.25×30+0.2
=157.5+0.3
=157.7
(8)0.92x15+0.08x15
=(0.92+0.08)×15
=1×15
=15(9)0.72×1.25×2.5
=0.9×(0.8×1.25)×2.5
=0.9×1×2.5
=2.25
(10)400.6x7-2003x0.4
=200.3x14-200.3x4
=200.3×(14-4)
=200.3×10
=2003
1條追問追答
推薦於 2018-02-24
17樓:匿名使用者
a9.24×1.7-9.24×0.7
b31.5×1.07-3.15×0.7
18樓:匿名使用者
十八姐十八分之一剪十八分枝十一等十八斤
19樓:街天夜色
有錯誤,那個「0.625......
=......(0.125...)」是0.125,你寫成0.128了
我現在需要六年級數學簡便運算60道帶答案,謝謝
20樓:慵懶的貓
六年級數學簡便
計算練習題
二、用簡便方法計算下面各題。(90分,4×20+5×2)
1125-997 998+1246 4+3.2+5+6.8 12-(1+2) 400÷125÷8 25×(37×8)
(-)×12 1×2× 34×(2+) 125×8.8 4.35+4.
25+3.65+3.75 3.
4×99+3.4
17.15-8.47-1.
53 17-3-4 ÷2+× 0.125×0.25×32 22.
3-2.45-5.3-4.
55(++)×72 4.25-3-(2-1) 187.7×11-187.7 43×+57.125×-0.5 ×(-÷)
2.42÷+4.58×-4÷3 ×6.
6+2.5× -- 4.6+++5.
4 2.8++7.2+ -(+)
+2.25++ ++ -+ +-++ 0.75+++0.375 5--
++++ 48.3-- ×4.25+÷6 0.625×0.5++×62.5% ×÷ +(-1.8)
2.5×(+++) 22×+25×75%-7×0.75 0.
25×63.5-× ×2.5-× +3.
125++ 1125-996
(111+999) ÷[56×(-)] 49.5×-(50-)×0.6 ×+÷+ 45×(+-0.
6) 897×-37.5%+104×0.375
×(-5.375) 3.5×+1.
25×+3.8÷ 71×99 3755+2996 8439+1001 446+295 888+999
72×156-56×72 25×32×125 709×99+709 14. 0.25×48 2.
5×0.4×2 299×101 563×999
2×6.6+2.5×6 75.
3×99+75.3 4.6×3.
7+54×0.37 0.125×+×8.
25+12.5% 8.37-3.
25-(1.37+1.75) 2100÷20
11―6―1 15―4.25―5 19.82―6.
57―3.43 4.6+3+6+5.
4 4+2.25+5+7 9.63÷2.
5÷4 6÷0.25
3-- ×+× ×+÷ 18×(+) ×7+×5 (-)×(24-)
(×+)÷ ÷[(+)×] ×7+×5 (-)×24-) (×+)÷ ÷[(+)×]
(32×+17)÷ (25+)÷+ ×+×+ (21×+×21)× (99+)÷9 ×÷
÷[(+)×] (+)×30 +3÷ ×-÷ 4-- ×58+×41+
××- ×+÷ ÷[(-)÷] 235 - 135÷18 ×153 – 0.6×53 (+)÷+
10 - - + 25×÷× 13.09-8.12-4.88 12×103-4500÷75 ×[÷(×)] (+)×15×11
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