Rekenen met negatieve getallen
Werk de haakjes weg.
Voorbeeld: ( - 12 ) + ( + 3 ) = - 12 + 3
a) ( + 15 ) - ( + 3 ) =
b) ( + 17 ) - ( - 2 ) =
c) ( - 5 ) - ( - 9 ) =
d) ( - 3 ) - ( + 8 ) =
e) ( + 10 ) - ( - 10 ) =
f) ( + 20 ) - ( + 20 ) =
g) 0 - ( - 9 ) =
h) - 38 - ( + 38 ) =
i) ( - 9 ) - ( + 12 ) =
j) - 40 - ( - 40 ) =
k) ( - 25 ) - 0 =
l) ( - 78 ) - ( - 12 ) =
Voorbeeld: ( - 12 ) + ( + 3 ) = - 12 + 3
a) ( + 15 ) - ( + 3 ) =
b) ( + 17 ) - ( - 2 ) =
c) ( - 5 ) - ( - 9 ) =
d) ( - 3 ) - ( + 8 ) =
e) ( + 10 ) - ( - 10 ) =
f) ( + 20 ) - ( + 20 ) =
g) 0 - ( - 9 ) =
h) - 38 - ( + 38 ) =
i) ( - 9 ) - ( + 12 ) =
j) - 40 - ( - 40 ) =
k) ( - 25 ) - 0 =
l) ( - 78 ) - ( - 12 ) =
Oplossing (klik hier)
a) ( + 15 ) - ( + 3 ) = 15 - 3
b) ( + 17 ) - ( - 2 ) = 17 + 2
c) ( - 5 ) - ( - 9 ) = - 5 + 9
d) ( - 3 ) - ( + 8 ) = - 3 - 8
e) ( + 10 ) - ( - 10 ) = 10 + 10
f) ( + 20 ) - ( + 20 ) = 20 - 20
g) 0 - ( - 9 ) = 0 + 9
h) - 38 - ( + 38 ) = - 38 - 38
i) ( - 9 ) - ( + 12 ) = - 9 - 12
j) - 40 - ( - 40 ) = - 40 + 40
k) ( - 25 ) - 0 = - 25 - 0
l) ( - 78 ) - ( - 12 ) = - 78 + 12
b) ( + 17 ) - ( - 2 ) = 17 + 2
c) ( - 5 ) - ( - 9 ) = - 5 + 9
d) ( - 3 ) - ( + 8 ) = - 3 - 8
e) ( + 10 ) - ( - 10 ) = 10 + 10
f) ( + 20 ) - ( + 20 ) = 20 - 20
g) 0 - ( - 9 ) = 0 + 9
h) - 38 - ( + 38 ) = - 38 - 38
i) ( - 9 ) - ( + 12 ) = - 9 - 12
j) - 40 - ( - 40 ) = - 40 + 40
k) ( - 25 ) - 0 = - 25 - 0
l) ( - 78 ) - ( - 12 ) = - 78 + 12