40 + 20 = ?
Adding Tens
Flashcard
•
Mathematics
•
1st Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
60
2.
FLASHCARD QUESTION
Front
10 + 20 = ?
Back
30
3.
FLASHCARD QUESTION
Front
10 + 10 = ?
Back
20
4.
FLASHCARD QUESTION
Front
40 + 30 = ?
Back
70
5.
FLASHCARD QUESTION
Front
50 + 10 = ?
Back
60
6.
FLASHCARD QUESTION
Front
What is adding tens?
Back
Adding tens means increasing a number by a multiple of ten.
7.
FLASHCARD QUESTION
Front
What is the sum of 30 and 20?
Back
50
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