Wyrażenia algebraiczne klasa 7 cz.1
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
Natalia Szymańska
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11 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Liczba 5 razy mniejsza od liczby x jest równa:
x-5
x/5
5x
5+x
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jarek zapisał wzór 𝑠 + 10(𝑠 + 1) + 100(𝑠 + 3), według którego chce tworzyć liczby trzycyfrowe. Jaką liczbę otrzymał dla 𝑠 = 6?
679
976
682
132
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Wskaż jednomiany podobne:
7xy2, 8xy2, -9x2y
7abc, 17cab, -8abc
7xy2, 8xxy2, -9xy2
7x2b3, 8x3b2, -9xb2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Po redukcji wyrazów podobnych w wyrażeniu 4𝑥2 + 7𝑦 + 5𝑥2 − 7𝑦 + 2 otrzymamy
9𝑥2 + 14𝑦 + 2
9𝑥2 + 2
9𝑥2 + 5
9𝑥2 - 14𝑦 + 2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Obwód figury przedstawionej na rysunku obok wynosi:
7𝑎 + 5𝑏 + 18
7𝑎 + 5𝑏 + 11
2𝑎 + 2𝑏 + 24
2𝑎 + 5𝑏 + 18
6.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Uporządkuj jednomian: 1,2𝑥3𝑦 ⋅ (−2,5) ⋅ 𝑥2𝑦3.
Wskazówka co do zapisu odpowiedzi: chcesz zapisać a do potęgi 7 to zapisz a7
7.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Oblicz wartość liczbową wyrażenia:
3𝑦2 − 𝑥(4𝑦 + 1) dla 𝑥 = 2 i 𝑦 = −3
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