六年级的数学简便计算题和解方程各50道,要有分数的,要有答案,谢谢!!
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发布时间:2022-04-24 06:10
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热心网友
时间:2023-10-07 22:20
1.3/7 * 49/9 - 4/32.8/9 * 15/36 + 1/273.12* 5/6 – 2/9 *34.8* 5/4 + 1/45.6÷ 3/8 – 3/8 ÷66.4/7 * 5/9 + 3/7 * 5/97.5/2 -( 3/2 + 4/5 )8.7/8 + ( 1/8 + 1/9 )9.9 * 5/6 + 5/610.3/4 * 8/9 - ...
热心网友
时间:2023-10-07 22:21
六年级的数学简便计算题和解方程各道要分数要答案
热心网友
时间:2023-10-07 22:21
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 × 5/9
7.5/2 -( 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 × 11/5
14.31 × 5/6 – 5/6
15.9/7 - ( 2/7 – 10/21 )
16.5/9 × 18 – 14 × 2/7
17.4/5 × 25/16 + 2/3 × 3/4
18.14 × 8/7 – 5/6 × 12/15
19.17/32 – 3/4 × 9/24
20.3 × 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 × 15
27.7/19 + 12/19 × 5/6
28.1/4 + 3/4 ÷ 2/3
29.8/7 × 21/16 + 1/2
30.101 × 1/5 – 1/5 × 21
2x+3x=60
5x=60
x=12
3.6x-2.8x=12
0.8x=12
x=15
100x-x=198
99x=198
x=2
18x+2x=60
20x=60
x=3
5x+6x=12.1
11x=12.1
x=1.1
6.6x-5x=8
1.6x=8
x=5
4x-x=24
3x=24
x=8
1.5x-x=1
0.5x=1
x=2
1.9x+0.4x=9.2
2.3x=9.2
x=4
25x-5x=10×20-5×20
20x=100
x=5
80x-40=(30x+40)×2
80x-40=60x+80
20x=120
x=6
80x-3200=60x+1200
20x=4400
x=220