Addition and Subtraction Within 20
Flashcard
•
Mathematics
•
1st Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is 18 - 18?
Back
0
2.
FLASHCARD QUESTION
Front
What is 12 + 8?
Back
20
3.
FLASHCARD QUESTION
Front
What is 17 - 4?
Back
13
4.
FLASHCARD QUESTION
Front
What is 11 - 2?
Back
9
5.
FLASHCARD QUESTION
Front
What is 17 - 4?
Back
13
6.
FLASHCARD QUESTION
Front
What is the result of adding two numbers?
Back
The result is called the sum.
7.
FLASHCARD QUESTION
Front
What is the result of subtracting one number from another?
Back
The result is called the difference.
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