
Révision et addition
Authored by Farida Rezzik
Mathematics
2nd Grade
Used 13+ times

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12 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Arrondis le nombre suivant à la dizaine près:
34
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Arrondis le nombre suivant à la dizaine près:
86
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Arrondis le nombre suivant à la dizaine près:
97
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Arrondis le nombre suivant à la dizaine près:
45
Answer explanation
Si le nombre se termine par le chiffre 5, On arrondit le nombre à la dizaine supérieure.
45 entre 40 et 50. 45 est au milieu, donc on l'arrondit à 50.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Arrondis le nombre suivant à la dizaine près:
74
Answer explanation
Si le nombre se termine par le chiffre 5, On arrondit le nombre à la dizaine supérieure.
45 entre 40 et 50. 45 est au milieu, donc on l'arrondit à 50.
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Fais une approximation de l'addition:
25 + 31 =
Answer explanation
25 + 31
Arrondir les termes d'abord:
30 + 30 = 60
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Fais une approximation de l'addition:
18 + 49 =
Answer explanation
18 + 49
Arrondir les termes d'abord:
20 + 50 = 70
2d + 5d = 7d
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