1樓:妙酒
脫式計算
3/4÷(5–9/17–25/17)
=3/4÷(5-2)
=3/4÷3
=1/4
能簡便要簡便;3/4+0.25+1又9/17=? 4×【(5/6+1/6)÷9】
2樓:匿名使用者
3/4+0.25+1又9/17
=3/4+1/4+1又9/17
=1+1又9/17
=2又9/17
4×【(5/6+1/6)÷9】
=4×(1÷9)
=4×1/9
=4/9
100道加減乘除混合運算數學計算題
3樓:俺是臭小子
20-8×2÷4 420×(13+57)×9066×38-987÷21
196÷4+56×12 16×50-36÷4(73+65)÷(210-164)
(13+47)×(52-18) (1024+4370)÷(24+38)
45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/628. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/230. 101 × 1/5 – 1/5 × 2131.
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÷2837.812-700÷(9+31×11) (136+64)×(65-345÷23)
38.85+14×(14+208÷26)
39.(284+16)×(512-8208÷18)40.120-36×4÷18+35
1.125*3+125*5+25*3+252.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)
4. 3/7 × 49/9 - 4/3
5. 8/9 × 15/36 + 1/276. 12× 5/6 – 2/9 ×3
7. 8× 5/4 + 1/4
8. 6÷ 3/8 – 3/8 ÷6
9. 4/7 × 5/9 + 3/7 × 5/910. 5/2 -( 3/2 + 4/5 )11. 7/8 + ( 1/8 + 1/9 )12. 9 × 5/6 + 5/6
13. 3/4 × 8/9 - 1/3
14. 7 × 5/49 + 3/14
15. 6 ×( 1/2 + 2/3 )
16. 8 × 4/5 + 8 × 11/517. 31 × 5/6 – 5/6
18. 9/7 - ( 2/7 – 10/21 )19. 5/9 × 18 – 14 × 2/720.
4/5 × 25/16 + 2/3 × 3/421. 14 × 8/7 – 5/6 × 12/1522. 17/32 – 3/4 × 9/2423.
3 × 2/9 + 1/3
24. 5/7 × 3/25 + 3/7
25. 3/14 ×× 2/3 + 1/626. 1/5 × 2/3 + 5/6
27. 9/22 + 1/11 ÷ 1/228. 5/3 × 11/5 + 4/3
29. 45 × 2/3 + 1/3 × 1530. 7/19 + 12/19 × 5/631. 1/4 + 3/4 ÷ 2/3
32. 8/7 × 21/16 + 1/233. 101 × 1/5 – 1/5 × 2134.50+160÷40
35.120-144÷18+35
36.347+45×2-4160÷52
37(58+37)÷(64-9×5)
38.95÷(64-45)
39.178-145÷5×6+42
40.812-700÷(9+31×11)
41.85+14×(14+208÷26)
43.120-36×4÷18+35
44.(58+37)÷(64-9×5)
45.(6.8-6.
8×0.55)÷8.546.
0.12× 4.8÷0.
12×4.847.(3.
2×1.5+2.5)÷1.
648.6-1.6÷4= 5.
38+7.85-5.37=49.
7.2÷0.8-1.
2×5= 6-1.19×3-0.43=50.
6.5×(4.8-1.
2×4)=
51.5.8×(3.
87-0.13)+4.2×3.
7452.32.52-(6+9.
728÷3.2)×2.553.
[(7.1-5.6)×0.
9-1.15] ÷2.554.
5.4÷[2.6×(3.
7-2.9)+0.62]55.
12×6÷(12-7.2)-6
56.12×6÷7.2-6
57.0.68×1.9+0.32×1.9
58.58+370)÷(64-45)
59.420+580-64×21÷28
60.136+6×(65-345÷23)
15-10.75×0.4-5.7
62.18.1+(3-0.
299÷0.23)×163.(6.
8-6.8×0.55)÷8.
564.0.12× 4.
8÷0.12×4.865.
(3.2×1.5+2.
5)÷1.6
66.3.2×6+(1.5+2.5)÷1.667.0.68×1.9+0.32×1.9
68.10.15-10.
75×0.4-5.769.
5.8×(3.87-0.
13)+4.2×3.7470.
32.52-(6+9.728÷3.
2)×2.571.[(7.
1-5.6)×0.9-1.
15] ÷2.572.5.
4÷[2.6×(3.7-2.
9)+0.62]73.12×6÷(12-7.
2)-6
74.12×6÷7.2-6
75.33.02-(148.4-90.85)÷2.5
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