Easy addition
Easy subtraction
Harder addition
Harder subtraction
What do you remember?
100
8 + (-9) =
-1
100
9 – (- 5) =
14
100
(-16) + (-11) =
27
100
1 – (-90) =
91
100
What direction do you move on a number line when you add -6?
Left
200
(-7) + (-2) =
-9
200
(-7) – (- 4) =
-3
200
87 + (-31) =
56
200
(-86) – (-16) =
-70
200
What direction do you move on a number line when you subtract -6?
Right
300
(-3) + 6 =
3
300
0 – (+6) =
-6
300
14 + (-9) + (-20) =
-15
300
22 – 98 – (-6) =
-70
300
Which number has no value?
0
400
(-5) + (-4) =
-9
400
(-1) – (-1) =
0
400
12 + (-20) + 9 =
1
400
(-67) – (-78) =
11
400
What is the opposite of -4?
4
500
0 + (-3) =
-3
500
(+5) – (+3) =
2
500
50 + (-7) + (-15)=
28
500
50 – (-7) – (-15)=
72
500
Give three examples of negative numbers in real life.
temperature, time zones, banking, elevations (above and below sea level), latitude and longitude, sport e.g. golf
M
e
n
u