Adding and Subtracting Tens
Flashcard
•
Mathematics
•
2nd Grade
•
Hard
+2
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 30 + 20?
Back
30 + 20 = 50.
Tags
CCSS.2.NBT.B.5
4.
FLASHCARD QUESTION
Front
What is 50 - 30?
Back
50 - 30 = 20.
Tags
CCSS.1.NBT.C.5
5.
FLASHCARD QUESTION
Front
If you have 40 and you add 30, what do you get?
Back
40 + 30 = 70.
Tags
CCSS.2.NBT.B.5
6.
FLASHCARD QUESTION
Front
If you have 80 and you subtract 20, what do you get?
Back
80 - 20 = 60.
Tags
CCSS.1.NBT.C.5
7.
FLASHCARD QUESTION
Front
What is the result of 60 + 10?
Back
60 + 10 = 70.
Tags
CCSS.2.NBT.B.6
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