Please help your child use and understand these terms.

**add** – find the sum of two or more numbers; find how many in all

**addends** – numbers that are added to form a sum

**addition sentence **– a number sentence (equation) where one number is added to another

**a.m.** – the time from midnight to one minute before noon

**compare** – to describe whether amounts or sizes are equal to, less than, or greater than each other

**difference** – the answer to a subtraction problem

**doubles plus one** – EXAMPLE: Use doubles fact 5+5=10 to quickly solve 5+6=11.

**doubles minus one** – EXAMPLE: Use doubles fact 7+7=14 to quickly solve 7+6=13.

**fewer** – smaller quantity or amount

**greater than** – (**>**) having a value that is more than another

**is equal to **(**=**) is a number or amount that is the same as another

**less than** (**<**) having a value or quantity that is not as much as another

**minus** – a symbol that shows subtraction

**order** – sequence or arrangement of things

**plus** (**+**) added to

**place value** = the value given to a digit in a number based on it’s position in the number. (Ex. 45 = 4 tens and 5 ones.)

**p.m.** – the time from noon to one minute before midnight

**subtract** – to take away objects from a group

**subtraction sentence** – a number sentence where one number is subtracted from another

**sum** – the answer to an addition problem

**zero **– a number that does not change the number it is added to; a whole number that means *none*

ADDITIONWORDS

add altogether both in all

sum total raise sum

plus together combine join

increase in all How many?

**SUBTRACTIONWORDS**

difference fewer left used

minus subtract lost

ate flew away hopped away

How much more? How many **are left**?

How many **more**?