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算数-整数integer整数consecutive integer连续整数positive whole number正整数negative whole number负整数even integer偶数odd integer奇数real number实数divisor约数，除数，因子factor因数multiple倍数remainder余数score二十quotient商prime number质数prime factor质因子successive连续的spread范围constant常数分数numerator分子denominator分母greatest common divisor/factor最大公约数least common multiple最小公倍数common multiple公倍数common factor公因子reciprocal/inverse倒数mixed number带分数improper fraction假分数proper fraction真分数nearest whole percent最接近的百分数小数decimal place小数位decimal point小数点decimal fraction纯小数infinite decimal无穷小数terminating decimal有限小数recurring decimal循环小数digit位approximately大约，近似estimation估算，近似实数absolute value绝对值natural number自然数比例common ratio公比scale比例，刻度幂和根exponent指数base底数power幂radical sign/root sign根号square root平方根cuberoot立方根product乘积集合subset子集intersection交集mutually exclusive互斥的independent events独立事件Venn diagrams韦恩图
