Vocab
Someone who watches something.
Observer
A synonym for rough
soft
"to do again"
"re-"
283
The sum of any number plus 0 equals that number.
To spring back after hitting something
Bounce
An antonym for below
above
"not"
"Dis-"
What is 718+226? Please show your work.
994
Changing the number of addends, but it does not change the sum. (ex. 3+5=5+3)
Commutative Property
A person who creates something for the first time.
Inventor
Antonym for separate.
join
"Without something"
"-less"
What is 518- 113? Please show your work.
405
Changing the grouping of addends, but does not changes the sum. (ex. (1+2)+3=1+(2+3))
Associative Property.
To picture it in your mind.
Imagine
Synonym for afraid
Terrified
Full of something
"-ful"
What is 474- 19? Please show your work
455
Random: what is 4x6?
*you cannot use a calculator
24