| A | B |
|---|
| Lisa had 7 tapes. Mike gave her some more. Now she has 12 tapes. | 7 + T = 12 |
| A room had 25 desks. Five desks were added, then 3 were removed. | (25 + 5) - 3 |
| find the value of (25 - 10) + 8 | 23 |
| find the value of 26 - (4 + 5) | 17 |
| what property 90 + _ =90 | 0 identity |
| what property (1 + 17) + 1 = _ + (17 + 1) | 1 Associative |
| what property 7 + 4 = _ + 7 | 4 Commutative |
| solve the equation b + 7 = 17 | 10 |
| solve the equation 6 = n - 7 | 13 |
| solve the equation 2 = 7 - m | 5 |
| 2 dimes + 4 nickels = 1 quarter + 5 pennies | no |
| 1 dime + 10 pennies = 1 dime + 2 nickels | yes |
| 20 - _ = 15 + 5 - 1 | 1 |
| 10 + 9 - _ = 19 -8 | 8 |
| 11 + 6 - _ = 19 - 5 | 3 |
