Math Review

Flashcard
•
Mathematics
•
2nd Grade
•
Hard
+10
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is place value in mathematics?
Back
Place value is the value of a digit based on its position within a number. For example, in the number 59, the digit 5 is in the tens place, making its value 50, while the digit 9 is in the ones place, making its value 9.
Tags
CCSS.4.NBT.A.1
2.
FLASHCARD QUESTION
Front
How do you determine the actual number of items represented in a group?
Back
To determine the actual number of items, count each item in the group. For example, if there are 30 marbles, you can count them one by one or use grouping methods to find the total.
Tags
CCSS.1.NBT.A.1
3.
FLASHCARD QUESTION
Front
What is estimation in mathematics?
Back
Estimation is a method of finding an approximate value that is close to the actual number. It is often used to simplify calculations and make quick assessments.
4.
FLASHCARD QUESTION
Front
How do you estimate the number of groups of tens in a number?
Back
To estimate the number of groups of tens, divide the number by 10 and round to the nearest whole number. For example, for 30, there are approximately 3 groups of ten.
Tags
CCSS.4.NBT.B.5
5.
FLASHCARD QUESTION
Front
What is the sum of 10 and 30?
Back
The sum of 10 and 30 is 40.
Tags
CCSS.1.NBT.C.4
CCSS.2.NBT.B.5
6.
FLASHCARD QUESTION
Front
How do you order numbers from smallest to greatest?
Back
To order numbers from smallest to greatest, compare each number and arrange them in ascending order. For example, the numbers 11, 3, 7, 5, and 9 ordered from smallest to greatest are 3, 5, 7, 9, and 11.
Tags
CCSS.1.NBT.B.3
7.
FLASHCARD QUESTION
Front
What is the definition of addition in mathematics?
Back
Addition is a mathematical operation that combines two or more numbers to find their total or sum.
Tags
CCSS.5.NBT.B.7
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