vocabulary
whats does it mean to solve?
evaluate
Tyler has 5 baseball card. His dad gives him some more. Write a mathematical expression.
5 + b
What is the changing the grouping but not changing the sum called?
associative property
solve a + 8 when a= 7
15
Estimate then add: 34 + 45
30 + 50 = 80
what is a mathematical phrase that does not have an equal sign
mathematical expression
Renee ate 3 cookies on Monday and more cookies on Tuesday. Write a mathematical expression.
3 + c
what is changing the order but not changing the sum called
commutative property
solve 22 + d when d= 11
33
estimate then add: 236 + 519
200 + 500 + 700
what is a number that can change or vary and is often represented by a letter
variable
Jesse buys 10 apples at the store, he needs more so he goes back to buy more. Write a mathematical expression
10 + a
the sum of 0 and that number is called?
Identity Property
solve 5 + t when t = 56
61
estimate then add 23,456 + 19, 761
20,000 + 20,000 = 40, 000
what does it mean to find a value that is close to the actual answer
estimate
Tara scores 2 goals on Monday 7 goals on Tuesday and more goals on Friday. Write a mathematical expression.
2+ 7+ g
what property is shown?
3 + 7=7 +3
commutative property
solve 13 + b when b= 9
22
Estimate then add: 760,304 + 654,335
800,000 + 700,000 = 1,500,000
The answer to an addition problem is called ?
sum
Ryan catches 3 fish and catches more fish later on in the day.
Write a mathematical expression
3 + f
what property is shown?
(6+8) +0 = 6 +(8+0)
associative property
solve 56 + y when y=8
64
estimate than add: 9,7304,490 + 4,453,671
10,000,000+ 4,000,000= 14,000,000