Arrays
Flashcard
•
Mathematics
•
2nd Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an array in mathematics?
Back
An array is a systematic arrangement of objects, usually in rows and columns.
Tags
CCSS.3.OA.A.1
2.
FLASHCARD QUESTION
Front
How do you calculate the total number of items in a rectangular array?
Back
Multiply the number of rows by the number of columns.
Tags
CCSS.3.OA.A.1
3.
FLASHCARD QUESTION
Front
If an array has 3 rows and 4 columns, how many total items are there?
Back
12 items (3 rows x 4 columns = 12).
Tags
CCSS.2.OA.C.4
4.
FLASHCARD QUESTION
Front
What is the direction of rows in an array?
Back
Rows go across.
Tags
CCSS.2.OA.C.4
5.
FLASHCARD QUESTION
Front
What is the direction of columns in an array?
Back
Columns go down.
Tags
CCSS.3.OA.A.1
6.
FLASHCARD QUESTION
Front
If Sadie cuts her brownies into 3 rows and 5 columns, how many brownies does she have?
Back
15 brownies (3 rows x 5 columns = 15).
Tags
CCSS.3.OA.A.3
7.
FLASHCARD QUESTION
Front
What is a number model for an array with 4 rows of 2?
Back
2 + 2 + 2 + 2 = 8.
Tags
CCSS.2.OA.C.4
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