
Sulgude avamine ja koodamine 7. klass
Mathematics
7th Grade
Used 14+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kooda sarnased liikmed:
x +2x + y - 2y - 3y - 4x =
-x -4y
7x - 6y
x + 4y
-x
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Koonda sarnased liikmed:
2c+a -2a -3b -2c + a =
a + b
-3b + 2a
-3b
-3b + 4c
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Koonda sarnased liikmed: a -12a -11 +3b +10a -4b +12 -b
-a -2b +1
a + b + c
-11a + 7b - 23
-a -2b -1
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Koonda sarnased liikmed:
2x2 -3x +4 -3x2 -5x +3
2x3
-9x3 + 7
-x2 -8x + 7
-x2 + 8x + 7
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Koonda sarnased liikmed: 2xy - 2xy2 + 2x2y + xy2 - 3xy + x3- xy2 =
x3 -xy
x3 +2x2y - 2xy2 - xy
x3 + 6x2y2
-x6y4
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Ava sulud ja koonda: - (2a - b) =
-2ab
-2a + b
2ab
-2a -b
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Ava sulud ja koonda: a - b + 2(a + b) =
3a + b
3ab
-3ab
3a - b
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