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/ Ingatan / 記憶運算
اﻟﺬاآﺮة
15 x2=30
+) 20x3=60
+) 25x4=100
–) 150÷5=30
–) 40x3=120
= 40
HDBMRP9N101-cal.doc
15 [x] 2 [M+]
20 [x] 3 [M+]
3 Line
25 [x] 4 [M+]
150 [÷] 5 [M–]
40 [x] 3 [M–]
[MRC]
[AC]
-9-
SCALE 1:1
Size: 125x90mm
15.
3 x
2.
M
=
30.
20.
6 x
3.
M
=
60.
25.
9 x
4.
M
=
100.
150.
÷
5.
12
M
=
30.
40.
15 x
3.
M
=
120.
x
3.
16 =
120.
40.
M
R
0.
2003/11/26