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/Potęga i odwrotność/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
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