<span>
арифметическая прогрессия<span><span>
116
</span>
<span>
145
</span>
<span>
174
</span>
<span>
203
</span>
<span>
232
</span>
<span>
261
</span>
<span>
290
</span>
<span>
319
</span>
<span>
348
</span>
<span>
377
</span>
<span>
406
</span>
<span>
435
</span>
<span>
464
</span>
<span>
493
</span>
<span>
522
</span>
<span>
551
</span>
<span>
580
</span>
<span>
609
</span>
<span>
638
</span>
<span>
667
</span>
<span>
696
</span>
<span>
725
</span>
<span>
754
</span>
<span>
783
</span>
<span>
812
</span>
<span>
841
</span>
<span>
870
</span>
<span>
899
</span>
<span>
928
</span>
<span>
957
</span>
<span>
986
</span>
</span></span>
1)1м 8см
2)8м 11дм
3)1м 2дм
4)7дм
1 час=60 минут
60:4=15 (минут) в 1/4 часа
60:3*2=20*2=40 (минут) в 2/3 часа