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Addition
Subtraction
Strategies
Math tools
100
The number or group with more
What is greater than?
100
The sign that is used to show addition.
What is the plus sign?
100
minus sign
What is the symbol used to show subtraction?
100
Drawing a picture with counters to show addition or subtraction
What is Drawing a Diagram?
100
A line labeled with numbers.
What is a number line?
200
The number or group that is smaller.
What is less than?
200
The answer to an addition problem.
What is the sum?
200
The answer to a subtraction problem.
What is the difference?
200
On a number line, start at the bigger number and move back to subtract.
What is count back?
200
An object that shows 10 ones.
What is a tens rod?
300
A chart that shows numbers 1-100.
What is a hundreds chart?
300
To join numbers together to find the sum.
What is adding?
300
To take numbers apart to find the difference.
What is subtracting?
300
On a number line, start at the smaller number and count forward to add.
What is count on?
300
Small cubes that represent one object.
What is a ones cube?
400
look at numbers or objects to see how they are alike or different/
What is comparing numbers?
400
Any numbers being added together.
What is an addend?
400
The opposite of addition.
What is subtraction?
400
Use this to count on and count back.
What is using a number line?
400
These cubes can be hooked together to show addition, subtraction, or build tens.
What are connecting cubes?
500
Addition and subtraction number sentences that use the same numbers. There are 2 addition and 2 subtraction sentences
What is a fact family?
500
A number sentence showing that numbers are being put together using a plus sign.
What is an addition number sentence?
500
A number sentence showing that numbers are being taken apart using a minus sign.
What is a subtraction number sentence
500
Count back by the numbers 1,2, or 3 to find the difference in a subtraction number sentence.
What is Count Back 1,2,3?
500
Use these small round objects to represent numbers to add and subtract.
What are counters?