Addition and Subtraction
1) Evaluate
a) 6 + (-9) =
b) -4 - (-7) =
c) 12 - 18 =
d) -10 + 3 =
e) 5 - (-11) =
f) -15 + (-6) =
g) 20 - (-4) =
h) -8 + 14 =
i) -25 - 5 =
2) Draw on a number line
a) Start at –1 and move 4 units right. What number do you land on? Is this addition or
subtraction?
b) Start at 3 and move 5 units to the left. What number do you land on? Is this addition
or subtraction?