数学メモ
数式記号の読み方
- 足し算(加算) : addition, plus (動詞: add)
- 引き算(減算) : subtraction, minus (動詞: subtract)
- 掛け算(乗算) : multiplication (動詞: multiply)
- 割り算(除算) : division (動詞: divide)
- 和 : summation, total (sum)
- 差 : difference ()
- 積 : product
- 商 : quotient
- 余り : remainder
ex. 5+4=9 : 3 added to 5 makes 9. とか 5 plus 4 is 9. 5-3=2 : 3 subtracted from 5 leaves 2 とか 5 minus 3 is 2. 5×3=15: 5 multiplied by 3 is 15. 15÷5=3: 15 divided by 5 is 3. ±5 : plus or minus 5 3と4の積は12である The product of three (multiplied) by four is twelve. 10割る4の余り Remainder of 10 divided by 4
和算の書物: 塵劫記 - 吉田光由