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能简算的要简算.1011×113×13×11(45+310)×1031349×21+28×1

2022-08-14 02:32:58 问答库 阅读 200 次

问题详情

能简算的要简算.
10

11

×1

13

×13×11(4

5

+3

10

10

3

13

49

×21+28×13

49

4

5

-4

5

×5

6

5

9

×3

4

+5

9

×1

4

(3

4

+5

8

)×32

5

4

×1

8

×161

5

+2

9

×3

10

72×5

71

参考答案

1011×113×13×11,
=(1011×11)×(113×13),
=10×1,
=10;

②(45+310)×103
=45×103+310×103
=83+1,
=323

1349×21+28×1349
=(21+28)×1349
=49×1349
=13;

45-45×56
=45-23
=215

59×34+59×14
=(34+14)×59
=1×59
=59

⑥(34+58)×32,
=34×32+58×32,
=24+20,
=44;

54×18×16,
=54×(18×16),
=54×2,
=52

15+29×310
=15+115
=415

⑨72×571
=(71+1)×571
=71×571+571
=5+571
=5571

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