
Cálculo mental
Authored by Cynthia Escamilla
Mathematics
1st Grade
Used 49+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
38 más 23:
61
40
2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3/4 más 4/8:
10/8, 5/4 o 1 1/4
6/2, 2/5 o 1
12/5, 5/3 o 1 1/3
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Convierte 2/5 en número decimal:
.40
1.2
.90
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Cuánto es 9 al cuadrado:
81
27
18
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tercera parte de 39:
13
15
11
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
10% de 90:
900
9
.9
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1/2 de 2/4:
4/4
2
4/2
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