Year 1 Lesson 12 In-class Exercise

Name ________________________

1). Use this number line to solve these problems:
 
 |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| 
-7  -6  -5  -4  -3  -2  -1   0  +1  +2  +3  +4  +5  +6  +7  +8  +9
a). +8 - 10 = b). - 3 - 4 = c). - 7 + 15 =

2). Multiply these numbers:

a). +5 x - 2 =

b). +3 x - 4 =

c). - 8 x - 8 =

d). - 6 x +4 =

e). +6 x (- 3) =

f). - 9 x (- 8) =

g). - 7 x (+3) =

h). (- 5) x (- 4) =


3). Draw a circle around the double signs, replace them with a single sign, then evaluate:
a).
= ____

b). +9 - - 2 = +9 2 = ____

c). - 5 + - 2 = - 5 2 = ____

d). +8 - (- 4) = +8 4 = ____

e). - 2 - (- 2) = - 2 2 = ____

f). +7 - (+ 4) = +7 4 = ____

g). +11 + (- 8) = +11 8 = ____