◎ 四则 sìzé[the four fundamental operations of arithmetic] 加、减、乘、除四种运算的总称四则题
1.{数} the four fundamental operations of arithmetic (加 addition; 减 subtraction; 乘 multiplication; 除 division)
加、减、乘、除四种运算的总称。如:四则题;整数四则;分数四则。
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