Year 2 Lesson 14 In-class Exercise
Name ________________________
Evaluate for a = 5, b = 10, c = 15:
1).
= ______
2).
= ______
Evaluate for x = - 3, y = - 6, z = - 9:
3).
= ______
4).
= ______
Evaluate:
5).
20 - ( - 15)
= ______
6).
40 - ( - 18)
= ______
7).
50 + ( - 12)
= ______
8).
65 + ( - 18)
= ______
9).
- 70 - ( - 12)
= ______
10).
- 86 - ( - 13)
= ______
11).
- 93 + ( - 13)
= ______
12).
- 108 + ( - 15)
= ______
Solve for x:
13).
x + 114 = 343
Answer = ______
14).
x + 1492 = 1995
Answer = = ______
= ______ 
= ______ 
= ______ 
= ______