Addtion[足し算(tashizann)]: "1 + 2 = 3" is "1足す(たす)2は3(ichi tasu ni ha san)"
Subtraction[引き算(hikizann)]: "1 - 2" is "1ひく2 (ichi hiku ni)"
Multiplication[かけ算(kakezann)]: "1 × 2" is "1かける2 (ichi kakeru ni)"
Division[割り算(warizann)]: "1 ÷ 2" is "1割る2 (ichi waru ni)"
"1/2(one half)" is "2分の1(ni bun no ichi)"