Upraszczanie wyrażeń algebraicznych
Authored by A P
Mathematics
5th - 9th Grade
CCSS covered
Used 701+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Wiedzą, że 5x+4x=9x (do pięciu iksów dodajemy cztery iksy razem mamy 9 iksów)
zapisz krócej:
6x+5x=
x
11x
30x
-x
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Zamiast x wyobraź sobie, że masz tam zł (złotówki)
Np. 8zł + 2zł = 10zł
8x + 2x = 10x
Zapisz krócej:
6x-5x=
x
-x
11x
10x
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Zapisz krócej:
6x + 4x - 5x=
x
5x
9x
-9x
Tags
CCSS.6.EE.A.3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Zapisz krócej:
4x-5x=
x
-x
9x
-9x
Tags
CCSS.6.EE.A.3
CCSS.6.EE.A.2
CCSS.6.EE.B.6
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Teraz mnożenie.
3 ∙ 4x to inaczej 3 ∙ 4 ∙ x. Mnożysz liczby i otrzymujesz 12 ∙ x, a 12 ∙ x to w skrócie 12x
Zapisz krócej:
8 ∙ 2x=
16x
16
4x
-16x
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Teraz mnożenie.
6 ∙ 2x to inaczej to to samo, co 2x ∙ 6, czyli 2 ∙ x ∙ 6. Mnożysz liczby (mnożenie jest przemienne) i otrzymujesz 12 ∙ x, a 12 ∙ x to w skrócie 12x
Zapisz krócej:
3x ∙ 5=
15x
15
2x
-15x
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uprość wyrażenie:
x+2y+3x+4y
Załóżmy, że x to znów złotówki a y to dolary. Ile masz razem złotówek i ile dolarów?
4zł + 6$ (i to jest wynik końcowy, nie potrafimy dodać dolarów do złotówek, jabłek do gruszek)
4x+6y
4x-2y
2y-2x
6y-2x
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