Year 2 Lesson 15 In-class Exercise

Name ________________________

Calculate

1). ( -.3)( -.4) =



2). ( . 25) 2 =



3). ( - 6) 3 =



4). 15 - 20 =



Simplify by combining similar terms, then solve:

5). 5X - 3X = 18



X =
6). 2X + 6X - 3X = 30



X =
7). 5X - 3X + 2 = 16



X =
8). X + 2X + 13 - X - 8 = 21



X =
Simplify by combining similar terms:

9). 7a +8b + 3a +4b =



10). 7a + 6b + 5c + 4a + 3b + 2c =



11). 4a +3b + 6a +9b =



12). 5x + 7y - 2x + 3y =



13). t + 4q - t + 8q =



14). 3a - 4a + b - 2b + 6b + a =



15). 4x2 + 3y - 4x + 2x2 - y + x= 16). 3t3 + 2t2 - t3 - 6t2 =