
Aflarea numărului necunoscut
Authored by natalia rotaru
Mathematics
1st - 2nd Grade
Used 5K+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a+ 23=45
21
22
24
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
54+ a= 55
1
2
54
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
64 - a= 21
22
42
43
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a- 25= 13
38
12
37
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mă gândesc la un număr. Îl adun cu 45 și obțin 75.
La ce număr m-am gândit?
20
30
40
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mă gândesc la un număr. Scad din el 31 și obțin 62.
La ce număr m-am gândit?
11
32
93
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Suma a două numere este 46. Unul dintre termeni este 31. Care este al doilea termen?
15
12
97
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