
Tekstist avaldise / võrrandi koostamine
Mathematics
7th Grade
Used 30+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Arvu x korrutati 6-ga, tulemusele liideti arvude x ja 9 summa ning saadi 44.
6x = x+ 9 +44
6(x + 9) = 44
6x + (x + 9) = 44
6x + x + 9 = 44
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Arvust 42 lahutati arv y, saadud tulemust korrutati 3-ga ning saadi 96.
(42 - y) 3 = 96
42 - y = 3 * 96
42 - 3y = 96
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Üks arv on teisest 6 korda suurem ja nende arvude vahe on 120.
6x + x = 120
6x - x = 120
6 + x + x = 120
6 - x + x = 120
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Otsitava arvu x ja temast 5 võrra väiksema arvude summa on 19.
x + 5x = 19
x - 5x = 19
x + x - 5 = 19
x + (x - 5) = 19
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Arv jagati 3-ga ja tulemusele liideti 16. Saadi 25.
a : 3 + 16 = 25
16 : 3 = 25a
a3 + 16 = 25
3 : a + 16 = 25
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kolm järjestikust täisarvu liidetakse ja saadetakse 120.
x + x + 1 + x + 2 = 120
x + 2x + 3x = 120
x + (x + 1) + (x + 2) = 120
x + 1 + 2 = 120
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Leia kaks arvu, kui on teada, et nende summa on 42 ja üks arv on teisest 5 korda suurem.
42x = 5
5x + x = 42
x = 42 * 5
x + 5x = 42
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