1 + 2 - 3 × 4 ÷ 5 = 0.6 akar pangkat dua : √ ( 2 × 2 ) = 2 persentase : 500 + 20 % = 600 500-20 % = 400 500 × 20 % = 100 100 ÷ 500 % = 20 Perhitungan Pajak : 500 Tax+= 525 525 Tax-= 500 kurung : ( 1 + 2 ) × ( 3 + 4 ) = 21 ( 1 + 2 ...