What property or rule is this an example of?
57+13=13+57
What is the commutative property of addition.
100
34+12
What is 46
100
34-11
What is 23
100
What is the commutative property of addition?
What is the order in which the two numbers are added does not change the sum
100
What is 1,000 less than and 1,000 more than 34,987
What is 33,987 and 35,987
200
What property or rule is this an example of?
What is the identity property of addition
200
238+196
What is 434
200
234-175
What is 59
200
What is the identity property of addition?
What is for any number, zero plus that number is the number.
200
estimate
768+457=
What is 800+500=1,300
300
What property or rule is this an example of?
27-0=27
What is when you subtract 0 from a number, the result is the number.
300
Estimate and then solve.
678+237=
What is 700+200=900 and 915
300
806-427
What is 379
300
What is the associative property of addition?
What is the grouping of the addends does not change the sum.
300
9,004-632
add to check
What is 8,372
400
What property or rule is this an example of?
(6+12)+3=(3+6)+12
What is the associative property of addition.
400
12,897+4,987
What is 17,884
400
500-268
add to check
What is 232
400
What is an amount that has not been identified called.
What is the unknown.
400
Parker had $32. He earned $10. Then, he bought a video game for $18. How much money does he have left? Write an equation using a variable for the unknown.
What is $32+$10-$18=N
500
What property or rule is this an example of?
234-234=0
What is when you subtract any number from itself, the result is 0.
500
Estimate and solve
12,786+11,457
What is 13,000+11,000=24,000 and 24,243
500
32,007-23,329
add to check
What is 8,678
500
What is a variable
What is a letter or symbol used to represent an unknown quantity.