1.加法：2 1 = 3读作：two plus one equals/makes three；
2.减法：5 – 3 = 2读作：five minus/take away three equals two；
3.乘法：2 x 3 = 6读作：two multiplied by three equals six / two times three equals six；
4.除法：6 / 3 = 2读作：six divided by three equals two
1.加法：2 1 = 3读作：two plus one equals/makes three；
2.减法：5 – 3 = 2读作：five minus/take away three equals two；
3.乘法：2 x 3 = 6读作：two multiplied by three equals six / two times three equals six；
4.除法：6 / 3 = 2读作：six divided by three equals two
