4класс. матем. #2,#3

Question

4класс. матем. #2,#3

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Answer 1

5,6,8
5•20•26 = 100•26 = 2600
25•4•36 = 3600
35•3•10 = 1050

Answer 2

5×26×20=(20×5)×26=100×26=2600
25×36×4=(25×4)×36=100×36=3600
3×35×10=(3×10)×35=30×35=1050