Mental Math
Flashcard
•
Mathematics
•
2nd Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is mental math?
Back
Mental math is the ability to perform calculations in your head without using a calculator or paper.
Tags
CCSS.2.NBT.B.5
2.
FLASHCARD QUESTION
Front
What does '100 less than a number' mean?
Back
It means to subtract 100 from that number.
Tags
CCSS.2.NBT.B.8
3.
FLASHCARD QUESTION
Front
What is 789 - 100?
Back
689
4.
FLASHCARD QUESTION
Front
What is 678 - 10?
Back
668
Tags
CCSS.2.NBT.B.8
5.
FLASHCARD QUESTION
Front
What is 423 + 10?
Back
433
Tags
CCSS.2.NBT.B.8
6.
FLASHCARD QUESTION
Front
What is 100 less than 172?
Back
72
Tags
CCSS.2.NBT.B.8
7.
FLASHCARD QUESTION
Front
What is the next number in the sequence: 547, 557, ___?
Back
567
Tags
CCSS.3.OA.D.9
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