OA2 Addition & Subtraction within 20
Flashcard
•
Mathematics
•
1st - 3rd Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
¿Cuántos marcos de 10 necesitarías para encontrar la suma de 17 + 3?
Back
2
2.
FLASHCARD QUESTION
Front
Encuentra la suma: 17 + 3 = ?
Back
20
3.
FLASHCARD QUESTION
Front
Encuentra la suma: 8 + 7 = ?
Back
15
4.
FLASHCARD QUESTION
Front
¿Qué par de ecuaciones muestra la propiedad conmutativa de la suma?
Back
5 + 7 = 12 y 7 + 5 = 12
5.
FLASHCARD QUESTION
Front
¿De qué es esto un ejemplo? 8 + 8 = 16
Back
Una suma doble.
6.
FLASHCARD QUESTION
Front
¿Qué es la propiedad conmutativa?
Back
El orden de los sumandos no afecta la suma.
7.
FLASHCARD QUESTION
Front
¿Cuánto es 10 + 5?
Back
15
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