自动生成小学数学加减乘除口算题，支持10、20、100以内混合计算
When enabled, the printed sheet will also include answers
Configure the worksheet and generate a printable mental math sheet
Whirlpool Hash Generator
Generate Whirlpool hash values online for data integrity checks and signature verification.
Random Number Generator
Generate random integers or decimals within a specified range, featuring duplicate removal, sorting, and formatted output.
.htpasswd Generator
Generate user authentication password files for Apache and other servers. Supports multiple encryption algorithms including BCrypt, MD5, and SHA-1.
UUID Generator
Bulk generate unique identifiers (UUID/GUID) across multiple versions (V1-V7) for developers and system design.
Whirlpool Hash Generator
Generate Whirlpool hash values online for data integrity checks and signature verification.
Random Number Generator
Generate random integers or decimals within a specified range, featuring duplicate removal, sorting, and formatted output.
.htpasswd Generator
Generate user authentication password files for Apache and other servers. Supports multiple encryption algorithms including BCrypt, MD5, and SHA-1.
UUID Generator
Bulk generate unique identifiers (UUID/GUID) across multiple versions (V1-V7) for developers and system design.
Random Password Generator
Customize character types and length to generate strong random passwords and secure your accounts.
解决家长和老师手动出题繁琐的痛点，自动生成符合小学课程标准的口算题，支持10以内、20以内、100以内的加减乘除混合运算，并可一键导出打印PDF。
单次最多生成50题；除法运算在100以内仅生成整除算式；生成结果不包含答案；本地生成不保存用户数据。
建议根据学生年级选择适当范围：一年级适用10以内加减法，二年级适用20以内乘除法，三年级以上可挑战100以内混合运算。除法建议与乘法搭配练习巩固逆运算关系。
