Vocabulary
What is the Identity Property of Addition?
An addition equation that contains something + 0
Estimate then Add
11.36 + 52.6 =
64
69.77 + 5.02
74.79
73.2 - 19.5
53.7
Jenna spent $7.75 at the arcade on Friday and $11.50 at the arcade on Saturday. How much money did Jenna spend all together?
$19.25
If you see _____ it is always the associative property.
Parenthesis
Estimate then subtract
69.58 - 34.26 =
36
73.28 + 32.48
105.76
4.15 - 1.29
2.86
Adrienne's lunch cost $13.16. She hands the cashier $20. About how much change will she receive?
$7
Define Inverse Operations
Operations that undo or cancel each other out.
Estimate then subtract
17.16 - 9.01 =
63.8 + 8.12
71.92
42.28 - 3.64
38.64
A family is staying in a hotel for 2 nights. The hotel costs $91.35 a night. How much will they pay for the hotel?
$182.70
Define Sum
Estimate then Add
62.84 + 74.2 =
137
4.1 + 20.68
24.78
9 - 5.79
3.21
Micah had $10.52 after he left the book store. If he bought a book for $6.39, how much money did he have before he went to the book store?
$16.91
Estimate then Add
199.99 + 9.99
210
2,346.78 + 867.4 =
3,214.18
9.73 - 8.431
1.299
Yolanda cut a piece of wood that was 1.6 feet long from a 3.25 foot piece of wood. How long is the remaining piece of wood?
1.65 feet long.