1
2x3+2
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/
百分比
/Persen/Procent/Procent/
Процент
/
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/
乘幂与倒数
/Berdaya dan Timbal
balik/Pot
ę
ga i odwrotno
ść
/Strøm & Tilbagestrømning/
Включение
и
обратное
/
لدﺎﺒﺘﻣ
و
ﺔﻗﺎﻃ
5
4
=625
5 [x] [=] [=] [=]
= 625.
1/2=0.5
2 [÷] [=]
= 0.5
=0.125
2 [x] 3 [+] 2 [÷] [=]
= 0.125
