Выполни вычисления удобным применяя свойства сложения и умножения. 2х7х50х9= 6 200+1 730+800+170= 25х72х4х40= 1 645+2 316+1355+684=

Boikamen Boikamen    1   18.05.2019 13:10    5

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mobidik77 mobidik77  30.09.2020 20:13

1) 6300

2) 8900

3) 288000

 

4) 6000

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Polinka0898 Polinka0898  30.09.2020 20:13

1. 2х7 = 14 х 50 = 700 х 9 = 6 300

 

2.    6200            3. 25 х 72 = 1800 х 4 = 7200 х 40 = 288 000        4.   1645

    + 1730                                                                                               +2316

                                                                                               

       7930                                                                                                 3961

    +   800                                                                                               +1355

                                                                                              

       8730                                                                                                  5316

     +  170                                                                                               +   684

                                                                                               

       8900                                                                                                  6000

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