82дм² *15м²
3м²*8см²
63м²*70дм²
600см²*6дм²
сравни за правильны ответ 40 балов не правельный бан

Ihad a great vacation. i rested with the parents of the sea. all the days we swam and sunbathed. we went on a tour of the historic sites. when i came home, i was interested in the study of history. hanging out with friends on the street. in late summer, my parents sent me to my grandparents in the village. in the village i have read many interesting books from my grandmother's childhood. she taught me her oven pie. helped his grandfather in the garden. with the village children, we swam in the river, go fishing. so i spent my vacation

82дм² *15м²=82дм²*1500дм²=123000дм²=1230м²

3м²*8см²=30000см²*8см²=240000см²=24м²

63м²*70дм²=6300дм²*70дм²=441000дм²=4410м²

600см²*6дм²=600см²*600см²=60000см²=6м²

=1/6 это если что дробью

Вот так как-то. думаю, что на 100% правильно написала

Х+13=26
х=26-13
х=13
Ответ: 13

77-у=20
у=77-20
у=57
Ответ: 57

у-12=20
у=20+12
у=32
Ответ: 32