21
Χρήση
σταθερής
/
ﺖﺑﺎﺛ
2+3=5
4+3=7
2 [+] 3 [=]
4 [=]
=
5.
=
7.
1-2=-1
2-2=0
1 [-] 2 [=]
2 [=]
=
-1.
=
0.
3x4=12
3x6=18
3 [x] 4 [=]
6 [=]
=
12.
=
18.
8÷4=2
7÷4=1.75
8 [÷] 4 [=]
7 [=]
=
2.
=
1.75
4.Percentage/Porcentaje/Pourcentage/Porcentagem/Prozentsatz/Perce
ntuale/Percentage
/
비율
/
เปอรเซ็นต
/
百分比
/Persen / Procent/Procent/
ПроцентΠοσοστό
/
ﻢﺼﺨﻟا
300x27%=81
300 [x] 27 [%]
81.
11.2/56x100%=20%
11.2 [÷] 56 [%]
20.
300+(300x40%)=420
300 [+] 40 [%]
420.
300-(300x40%)=180
300 [-] 40 [%]
180.
1400x12%=168
1400 [x] 12 [%]
168.
1400x15%=210
15 [%]
210.
5.Power & Reciprocal/Potencia e inversa /Puissance & Réciproque
/Força e Reciprocidade /Leistung & Reziproke/Power& Reciproco
/Machtsverheffen & Omkeren
/
거듭제곱과역수
/
เล
ขยกกําลัง
และ
คาตรงขาม
/
乘幂与倒数
/Berdaya dan Timbal balik/Pot
ę
ga i