Elementary Math: Addition Facts

Questions and Answers

To quickly recall basic number combinations

Starting with a number and counting on to find the total

Multiplication is repeated addition

To visualize multiplication problems Signup and view all the answers

To find the difference between two numbers Signup and view all the answers

To visualize addition and subtraction problems Signup and view all the answers

To quickly recall multiplication facts Signup and view all the answers

Subtracting blocks from a tower Signup and view all the answers

Study Notes

Number sense: understanding that numbers can be combined to make a total or a whole
Basic addition: combining two or more numbers to get a total or a sum
Addition facts: basic number combinations that are memorized to solve simple addition problems quickly
- Examples: 2+2=4, 5+1=6, 8+0=8
Number lines: a visual representation of numbers to help students understand relationships between numbers
Counting on: starting with a number and counting on to find the total
- Example: 3+2=? Start with 3, count on 2 more: 4, 5

Repetition and patterns: understanding that multiplication is repeated addition
Basic multiplication: combining a number a certain number of times to get a product
Multiplication tables: memorized charts of multiplication facts for quick recall
- Examples: 2 x 3 = 6, 5 x 4 = 20
Arrays: visual representations of objects arranged in rows and columns to represent multiplication
Real-world applications: using multiplication to solve everyday problems (e.g., arranging blocks, seating at a table)

Number sense: understanding that numbers can be taken away to get a difference
Basic subtraction: finding the difference between two numbers
Counting back: starting with a number and counting back to find the difference
- Example: 8-3=? Start with 8, count back 3: 7, 6, 5
Number lines: a visual representation of numbers to help students understand relationships between numbers
Real-world applications: using subtraction to solve everyday problems (e.g., subtracting blocks, finding the difference in height)

Number sense is essential to understand that numbers can be combined to make a total or a whole.
Basic addition involves combining two or more numbers to get a total or a sum.
Addition facts are basic number combinations that are memorized to solve simple addition problems quickly, such as 2+2=4, 5+1=6, and 8+0=8.
Number lines provide a visual representation of numbers, helping students understand relationships between numbers.
Counting on is a strategy that starts with a number and counts on to find the total, such as 3+2=? Start with 3, count on 2 more: 4, 5.

Repetition and patterns are crucial to understand that multiplication is repeated addition.
Basic multiplication involves combining a number a certain number of times to get a product.
Multiplication tables are memorized charts of multiplication facts for quick recall, such as 2 x 3 = 6 and 5 x 4 = 20.
Arrays provide visual representations of objects arranged in rows and columns to represent multiplication.
Real-world applications involve using multiplication to solve everyday problems, such as arranging blocks or seating at a table.

Number sense is essential to understand that numbers can be taken away to get a difference.
Basic subtraction involves finding the difference between two numbers.
Counting back is a strategy that starts with a number and counts back to find the difference, such as 8-3=? Start with 8, count back 3: 7, 6, 5.
Number lines provide a visual representation of numbers, helping students understand relationships between numbers.
Real-world applications involve using subtraction to solve everyday problems, such as subtracting blocks or finding the difference in height.