Question

简便计算题， 悬赏100分！！

2.4乘1.8减4.8乘0.4
3.7乘8.7加6.2乘8.7加0.87
4.2乘6.5除以1.3
4.6除以（0.4乘2.3）
3.6除以4.8乘0.8
（6.4加3.2)除以8
3.2乘0.1加6.32乘9
11.26减8.73加2.73
好的加分， 是简便算法，说是用计算计算的滚开
要有过程，不要光有结果

Answer 1

2.4*1.8-4.8*0.4
=2.4*2*1.8/2-4.8*0.4
=4.8*0.6-4.8*0.4
=4.8*(0.6-0.4)
=4.8*0.2
=2.4

3.7*8.7+6.2*8.7+0.87
=3.7*8.7+6.2*8.7+8.7*0.1
=(3.7+6.2+0.1)*8.7
=10*8.7
=87

4.2*6.5/1.3
=4.2*(6.5/1.3)
=4.2*5
=21

4.6/(0.4*2.3)
=4.6/2.3*0.4
=2*0.4
=0.8

3.6/4.8*0.8
=3.6*0.8/4.8
=28.8/4.8
=6

(6.4+3.2)/8
=6.4/8+3.2/8
=0.8+0.4
=1.2

3.2*0.1+6.32*9
=3.2*0.1+6*9+0.32*9
=3.2*(0.1+0.9)+6*9
=57.32

11.26-8.73+2.73
=11.26+2.73-8.73
=14-8.73
=5.27

Answer 2

2.4*1.8-4.8*0.4
=2.4*1.8-2.4*2*0.4
=2.4*1.8-2.4*0.8
=2.4*(1.8-0.8)
=2.4*1=2.4

3.7*8.7+6.2*8.7+0.87
=3.7*8.7+6.2*8.7+0.1*8.7
=8.7*(3.7+6.2+0.1)
=8.7*10
=87

4.2*6.5/1.3
=4.2*(6.5/1.3)
=4.2*5
=21

4.6/(0.4*2.3)
=(4.6/2.3)/0.4
=2/0.4
=5

3.6/4.8*0.8
=(0.8/4.8)*3.6
=(1/6)*3.6
=0.6

(6.4+3.2)/8
=6.4/8+3.2/8
=0.8+0.4
=1.2

3.2*0.1+6.32*9
=0.32+6.32*9
=0.32+6-6+6.32*9
=6.32-6+6.32*9
=6.32*1-6+6.32*9
=6.32*(1+9)-6
=6.32*10-6
=63.2-6
=57.2

11.26减8.73加2.73
11.26-8.73+2.73
=11.26-(8.73-2.73)
=11.26-6
=5.26

Answer 3

1。2.4*1.8-4.8*0.4=2.4*1.8-2*2.4*0.4=2.4（1.8-2*0.4）=2.4*1=2.4

2。3.7*8.7+6.2*8.7+0.87=3.7*8.7+6.2*8.7+8.7*0.1
=8.7*（3.7+6.2+0.1）=8.7*10=87
3。4.2*6.5/1.3=4.2*5*1.3/1.3=4.2*5=21

4。4.6/(0.4*2.3)=(2*2.3)/(0.4*2.3)=2/0.4=5

5..3.6/4.8*0.8=3.6/（6*0.8）*0.8=3.6/6=0.6

6..(6.4+3.2)/8=6.4/8+3.2/8=1.2

7..3.2*0.1+6.32*9=3.2*0.1+(6+0.32)*9
=6*9+3.2*0.1+3.2*0.9=54+3.2*1=57.2

8..26-8.73+2.73=26-8-0.73+2+0.73=10

Answer 4

2.4*1.8-4.8*0.4
=2.4*1.8-2.4*2*0.4
=2.4*（1.8-0.8）
=2.4
3.7*8.7+6.2*8.7+0.87
=8.7*（3.7+6.2+0.1）
=8.7*10
=87
=4.2*6.5/1.3
=4.2*（6.5/1.3）
=
=4.2*5
=21
4.6/(0.4*2.3)
=(4.6/2.3）/0.4
=2/0.4
=5
3.6/4.8*0.8
=(3.6/1.2)/4*0.8
=0.3*0.8/4
=0.6
(6.4+3.2)/8
=6.4/8+3.2/8
=1.2
3.2*0.1+6.32*9
=0.32*1+（0.32+6）*9
=0.32*（1+9）+6*9
=3.2+54
=57.2
11.26-8.73+2.73
=11.26-（8.73-2.73）
=11.26-6
=5.26

Answer 5

50＋160÷40 （58+370）÷（64-45）
32.120-144÷18+35
33.347+45×2-4160÷52
34（58+37）÷（64-9×5）
35.95÷（64-45）
36.178-145÷5×6+42 420+580-64×21÷28
37.812-700÷（9+31×11） （136+64）×（65-345÷23）
38.85+14×（14+208÷26）
23) 1.2×2.5+0.8×2.5
24) 8.9×1.25-0.9×1.25
25) 12.5×7.4×0.8
26) 9.9×6.4-（2.5+0.24）
（27） 6.5×9.5+6.5×0.5
0.35×1.6+0.35×3.4
6.72-3.28-1.72
0.45+6.37+4.55
5.4+6.9×3-（25-2.5）2×41846-620-380
4.8×46+4.8×54
0.8+0.8×2.5
1.25×3.6×8×2.5-12.5×2.4
28×12.5-12.5×20
23.65-（3.07+3.65）
（4+0.4×0.25）8×7×1.25
1.65×99+1.65
27.85-（7.85+3.4）
48×1.25+50×1.25×0.2×8
7.8×9.9+0.78
(1010+309+4+681+6）×12
3×9146×782×6×854
5.15×7/8+6.1-0.60625

39.（284+16）×（512-8208÷18）
40.120-36×4÷18+35
41.（58+37）÷（64-9×5）
42.(6.8-6.8×0.55)÷8.5
43.0.12× 4.8÷0.12×4.8
44.（3.2×1.5+2.5）÷1.6 （2）3.2×（1.5+2.5）÷1.6
45.6-1.6÷4= 5.38+7.85-5.37=
46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×（4.8-1.2×4）= 0.68×1.9+0.32×1.9
48.10.15-10.75×0.4-5.7
49.5.8×（3.87-0.13）+4.2×3.74
50.32.52-（6+9.728÷3.2）×2.5
51.[（7.1-5.6）×0.9-1.15] ÷2.5
52.5.4÷[2.6×（3.7-2.9）+0.62]
53.12×6÷（12-7.2）-6 （4）12×6÷7.2-6

102×4.5
7.8×6.9＋2.2×6.9
5.6×0.25
8×（20－1.25）
1）127+352+73+44 （2）89+276+135+33
（1）25+71+75+29 +88 （2）243+89+111+57
9405-2940÷28×21
920-1680÷40÷7
690+47×52-398
148+3328÷64-75
360×24÷32+730
2100-94+48×54
51+（2304-2042）×23
4215+（4361-716）÷81
（247+18）×27÷25
36-720÷（360÷18）
1080÷（63-54）×80
（528+912）×5-6178
8528÷41×38-904
264+318-8280÷69
（174+209）×26- 9000
814-（278+322）÷15
1406+735×9÷45
3168-7828÷38+504
796-5040÷（630÷7）
285+（3000-372）÷36
1+5/6-19/12
3x(-9)+7x(-9
(-54)x1/6x(-1/3)
1.18.1＋（3－0.299÷0.23）×1
2.(6.8-6.8×0.55)÷8.5
3.0.12× 4.8÷0.12×4.8
4.（3.2×1.5+2.5）÷1.6 （2）3.2×（1.5+2.5）÷1.6
5.6-1.6÷4= 5.38+7.85-5.37=
6.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
7.6.5×（4.8-1.2×4）= 0.68×1.9+0.32×1.9
8.10.15-10.75×0.4-5.7
9.5.8×（3.87-0.13）+4.2×3.74
10.32.52-（6+9.728÷3.2）×2.5
11.[（7.1-5.6）×0.9-1.15] ÷2.5
12.5.4÷[2.6×（3.7-2.9）+0.62]
13.12×6÷（12-7.2）-6
14.12×6÷7.2-6
15.33.02－（148.4－90.85）÷2.5
7×(5/21+9/714)