10 or 100 more or less
What is 100 more than 367?
467
What property is this?
52 + 0 = 52
Identity Property
6 + 9 + 4 = ?
19
695 + 141 = ?
836
Bob received $232 for his birthday and $187 for Christmas. If he deposited all of the money he received, how much does he have in his bank account?
$419
What is 10 less than 589?
579
What property is this?
4 + 6 = 6 + 4
Commutative Property
Use an addition strategy to solve:
199 + 348 = ?
547
327 + 56
383
This year 412 books were sold at the book fair and this year 595 books were sold. How many total books were sold at the book fair?
1,007 books
What is 10 more than 432?
442
What property is this?
(1 + 9) + 5 = 15
Associative Property
Use an addition strategy to solve mentally:
98 + 132 = ?
230
$258 + $337 = ?
$595
Is it reasonable to say that about 3,000 students voted if 1,245 voted on Monday and 2,100 students voted on Tuesday?
No, that would be an overestimate.
What is 100 less than 219?
119
Use the Identity Property to write an equation.
8 + 0 = 8
answers vary
Use an addition strategy to solve:
57 + 129 = ?
186
$8,285 + $1,456 = ?
$9,741
4,105 yards
What is 400 more than 399?
799
What symbol does the Associative Property use?
Parentheses
Use an addition strategy to solve:
599 + 124
723
$2,333 + $5,987 = ?
$8,320
How many total people went to the fair if 5,467 went on Friday and 3,871 went on Saturday?
9,338 people