Adding and Subtracting Tens
Flashcard
•
Mathematics
•
2nd Grade
•
Hard
+1
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is adding tens?
Back
Adding tens means increasing a number by a multiple of ten. For example, if you add 20 to 30, you get 50.
Tags
CCSS.1.NBT.C.5
2.
FLASHCARD QUESTION
Front
What is subtracting tens?
Back
Subtracting tens means decreasing a number by a multiple of ten. For example, if you subtract 10 from 50, you get 40.
Tags
CCSS.1.NBT.C.5
3.
FLASHCARD QUESTION
Front
What is the result of 30 + 20?
Back
The result is 50.
Tags
CCSS.2.NBT.B.5
4.
FLASHCARD QUESTION
Front
What is the result of 50 - 30?
Back
The result is 20.
Tags
CCSS.1.NBT.C.5
5.
FLASHCARD QUESTION
Front
If you have 40 and you add 30, what do you get?
Back
You get 70.
Tags
CCSS.1.NBT.C.4
CCSS.2.NBT.B.5
6.
FLASHCARD QUESTION
Front
If you have 80 and you subtract 20, what do you get?
Back
You get 60.
Tags
CCSS.1.NBT.C.5
7.
FLASHCARD QUESTION
Front
What does it mean to add 10?
Back
Adding 10 means to increase a number by 10. For example, 5 + 10 = 15.
Tags
CCSS.1.NBT.C.5
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