Word Bank - Strategies to Add and Subtract within 20

Word Bank

Addition (add)

To put together or combine two or more numbers to find the total amount, also called the sum. The addition is written as _____ + _____ =______ using the addition symbol +.

Difference

The result of subtracting one number from another or the numerical distance between two values Number sentence: a mathematical combination of numbers and operational signs (e.g., +, -< x, /) to represent addition, subtraction, multiplication, and division. It may include an equality or inequality symbol.

Rekenrek

A visual representation to show numbers by counting beads in groups of 5. Beads may be grouped by ones, fives, tens, up to 100.

Subtraction (subtract)

To take away one number or amount from another. This is also called the difference. Subtraction is written as _____ - _____ =______ using the subtraction symbol - .

Sum

The result or answer to adding two or more numbers together. The sum is the total.

Ten Frame

A visual representation or picture to show numbers 0-10 with a rectangular frame with two rows of 5.

5-Group Drawing

A visual representation or picture breaking numbers into groups of 5. They may go horizontally or vertically. Video Reference