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20
REGNEFUNKTION
Regneart
Eksempel
Tastekombination Resultat
Addition og
substraktion
123 + 456 – 789
123 + 456 –
789 =
–210
Multiplikation 45,6 x 7,89
45. 6 x 7.89 = 359.784
Division
3 ÷ 4
3 ÷ 4 = 0.75
Beregning med
en konstant
1) 12 x 9
12 x 8
12 x 9 =
8 =
108
96
2) 32 ÷ 2
28 ÷ 2
32 ÷ 2 =
28 =
16
14
3) 2 + 9
6 + 9
2 + 9 =
6 =
11
15
4) 8 – 3
7 – 3
8 – 3 =
7 =
5
4
Procenträkning 1) 20 % af 150
150 x 20 % 30
2) 9 = ? % x 36
9 ÷ 36 % 25
3) 200 + 10 %
200 + 10 % 220
4) 500 – 20 %
500 – 20 % 400
Potensregning 1) 2 3
2 x = = 8
2) (4 3)2
4 x = = x = 4096
Kæderegning 1) (–25 x 40) +100 x 1
9 2
25 +/- x 40 + 100
÷ 9 ÷ 2 = –50
2) (7 + 9) x 12 – 8
7 + 9 x 12
– 8 =
184
Regning med
gemmefunktion
1) (12 x 4) – (20 ÷ 2)
12 x 4 M +
20 ÷ 2 M –
MRC
M48
M10
M38
2) 50 x 5 – (20 x
3) + 10
50 x 5 M +
20 x 3 M –
10 M +
MRC
M250
M60
M10
M200
54428A IE_DK.indd 20
2/26/2014 6:03:51 PM