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有乘方的运算:
-2×32 -22-??1? 34-43 ?13-2×??1? ??3?÷??4?
3322
242?2×??2? ?32 +??4? ??2?×??2?×??2? ?2×32-??2?3?
2335
??2?2?2+??2?3+23
0-??3?2÷3×??2?3
??324?×(-23+1) ×0
-15-???0.4????2.5??5
?22-(?3)3×??1?3-??1?3 -????1??2+??1222? ?22×??1232?÷??0.8? -32×??13?2-??2?3÷??122?
6+22×??15? -10+8÷??2?2-4×3 ??1?25-(1-0.5)×13 ??2?3×??223?×??332? \\\\
82??3?+(-6)÷??1??2?×??14×??3?+6 ??13? -7+2×3? 2?×3×
21312722
7522322????????2?4÷(-8)-??1?5?4??3×(-) ×(?2?2811)×??7?
4
12??2?2-2[ -3×3]÷1 ??6?2÷9÷??6?9?2 36×?1?23?
45
??1?1?23-{??3???3?0.4???1??(?2)?} -14+(1-0.5)××[2×??3?]
3?2???
-4×??1?7??6?+??5??3???2? -33-8???2??1+??3?×??2?÷
333323????1 0.25
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过关测试:一
1. ?(?3)2?2 2.
113. (?1.5)?4?2.75?(?5) 4. ?8?(?5)?63
12411?(?)??(?)?(?) 2352342
5. 4?5?(?12)3
7.(?10)2?5?(?25)
9. 5?(?6)?(?4)2?(?8)
11.(?16?50?325)?(?2)
6. (?2)?(?556)?(?4.9)?0.6 8. (?5)3?(?35)2 10. 21?(?6)?(1472?2) 12. (?6)?8?(?2)3?(?4)2?5 \\\\
13. (?)2??(??2) 14. ?11997?(1?0.5)?
15. ??[?32?(?)2?2] 16. (?)2?(??1)?0 1212232313323223
17. ?14?(1?0.5)?13?[2?(?3)2]
19. ?52?[?4?(1?0.2?15)?(?2)]
21. (?5)?(?4)2?0.25?(?5)?(?4)38 4318. (?81)?(?2.25)?(?49)?16 20. (?5)?(?36)?(?7)?(?36)?12?(?36777) 22. (?3)2?(11)3?2?6??2293
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过关测试:二
19911111??1、 7?(1?1?3)?(?2) 2、??34?2?(?4)??(14?16)
92844
3、???????21?32???????11?3?2?????(52?5?3?32) ?
5、(—513)÷(—16)÷(—2) 6
7、(—5)÷[1.85—(2—134)×7] 8
9、1÷( 1116-3)×6 10
?4?1313 4、?52????(?2)3?(1?0.8?34)??1?1???
、 –4 + 2 ×(-3) –6÷0.25
、 18÷{1-[0.4+ (1-0.4)]×0.4
、 –3-[4-(4-3.5×13)]×[-2+(-3) ]