7 szkoły podstawowej

Matematyka 7

Matematyka

Matematyka 7. Ćwiczenia podstawowe

Matematyka 7. Podręcznik cz. 1

Matematyka 7. Podręcznik cz. 2

Matematyka 7. Zestawy zadań

Matematyka wokół nas 7

Matematyka z kluczem 7

Matematyka z plusem 7

Teraz egzamin ósmoklasisty. Arkusze

Teraz egzamin ósmoklasisty. Repetytorium

((1−(−0,4)⋅(−132​))⋅(0,8+(−1,2):2,4)+83​⋅(−1,6)):(−21​)

Najpierw obliczmy wartości liczbowe a i b. a=(131​−0,5):(127​−41​)=(34​−21​):(127​−123​)=(68​−63​):124​=65​:31​=65​⋅13​=615​=25​=2,5

Pierwszego dnia przebyli 51​ &nbsp; całej trasy, czyli&nbsp; 51​⋅25 km=5 km

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Pierwszego dnia przebyli <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/bd82a28b1f088b3a186737712fb16fe7323aecb3abc234b38c9534349aaa1757_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/bd82a28b1f088b3a186737712fb16fe7323aecb3abc234b38c9534349aaa1757_big.svg" type="image/svg+xml"></object> &nbsp; całej trasy, czyli&nbsp; <object class="math small" data="https://odrabiamy.pl/api/v3/math_formulas/bded2cddc1409d61227ed68cdb6c5357fd27906acdf14e3017498adef4e62d00_small.svg" type="image/svg+xml"></object><object class="math big" data="https://odrabiamy.pl/api/v3/math_formulas/bded2cddc1409d61227ed68cdb6c5357fd27906acdf14e3017498adef4e62d00_big.svg" type="image/svg+xml"></object>

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