Posted in Մաթեմատիկա

Մաթեմատիկա

=1.10000+5.1000+8×100+2×10+1.

393+600+7+3000=393+7+400+600=1000+3000=4000

354+520+80+(520+80)+354=954

35x5x20=(5×20)x35=100×35=100×35=3500

132+680=812

121:11=11

94:2=47

6417:23=279

{477 } x5 =2385

 

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