2/9 = 10/45 7/15 = 21/45 10/45 + 21/45 = 31/45 45 - 31 = 14
Samodzielna praca uczniów trwała 14 minut.
2/9*45=10min
7/15*45=21min
45-21-10=14min
Odp.samodzielna praca uczniów trwała 14min.
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2/9 = 10/45 7/15 = 21/45 10/45 + 21/45 = 31/45 45 - 31 = 14
Samodzielna praca uczniów trwała 14 minut.
2/9*45=10min
7/15*45=21min
45-21-10=14min
Odp.samodzielna praca uczniów trwała 14min.