1H07.E1 uitwerkingen, deel 1 ...........................................................................................................
1 -4 -2,5 -1 -0,5 0,5 3,5 5,5
2 a 2,5 > –3 c –5 < –3 e –3 < 2
b –5 < 3 d –2 > –5 f –5 < 0,5
3 a 6o d 3o
b 9o e 13o
c 7o f 16o
4 a A(-2, -3), B(3, -4)
C(2, 1), D(-2, 4)
b zie assenstelsel
5
6 a 30 + –7 =
30 - 7 = 23
b 20 + –41 =
20 - 41 = -21
c –10 + –25 =
-10 - 25 = -35
d –30 + –20 =
-30 - 20 = -50
7 a 30 – –7 =
30 + 7 = 37
b 20 – –41 =
20 + 41 = 61
c –10 – –25 =
-10 + 25 = 15
d –30 – –20 =
-30 + 20 = -10
8 a 5 × 3 = 15 e –4 × –7 = 28
b –6 × 2 = -12 f –8 × 5 = -40
c 4 × –5 = -20 g 6 × –2 = -12
d –6 × –2 = 12 h 0 × –4 = 0
9 a –32 : 8 = -4 e 63 : -7 = -9
b 16 : –2 = -8 f –56 : –8 = 7
c –36 : –4 = 9 g 24 : –6 = -4
d 42 : –7 = -6 h –72 : 18 = -4
10 a –5 × 3 = –15 e –7 × -11 = 77
b 5 × -10 = –50 f –4 × 8 = –32
c –5 × -7 = 35 g 2 × -21 = –42
d 5 × 15 = 75 h –9 × -9 = 81